{"title":"All Products","description":"All of the Kewlus products!","products":[{"product_id":"kewlus-spring-ks2","title":"Classic (KS2) Cobra Bag Spring","description":"\u003cp\u003eSave a ton of money by making your own DIY Boxing Cobra Punching Bag with the \u003cstrong\u003eKewlus Classic (KS2) Cobra Bag Spring\u003c\/strong\u003e. Increase the speed to your liking, yes with the Classic spring the \u003cstrong\u003espeed is adjustable\u003c\/strong\u003e! This spring is roughly 12 inches (30cm) long and designed to fit easily onto a 3\/4 inch pipe and simply held in place with strong duct tape. Increase the speed by moving the spring lower onto the pipe, thus reducing the number of active coils.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003ePlease note that trying to adapt the Kewlus Classic Spring to another cobra bag of a different brand is unlikely to work\u003c\/strong\u003e due to important parameters such as the spring diameter, as well as the length and weight of the top section of the bag. Heavy top section bags will result in slow performance.\u003c\/p\u003e\n\u003ch2\u003eLimited Time Offer: Get 30% Off\u003c\/h2\u003e\n\u003cp\u003eUse the code \u003cstrong\u003eREEDYKEWLUS\u003c\/strong\u003e at the checkout to get 30% off the KS2 Spring! This is a limited time discount and is limited to one per customer.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eDIY Instructions\u003c\/h2\u003e\n\u003cp\u003eFor complete DIY build instructions including a video using the Kewlus Classic (KS2) Spring (used to be known as the Pro Spring), \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-cobra-bag\" title=\"How To Make a Cobra Bag\"\u003eclick here\u003c\/a\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-cobra-bag\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/BoxingDIYCobraBag.jpg?v=1765931230\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eClassic (KS2) vs Prime (KS3) Springs Compared\u003c\/h2\u003e\n\u003cp\u003eCheck out \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/ks2-vs-ks3-cobra-bag-springs-compared\" title=\"KS2 vs KS3 Springs Compared\"\u003ethis article\u003c\/a\u003e to read about the differences between the Classic (KS2) Spring and the Prime (KS3) Spring, or watch this video:\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/csqleLxS9Ro\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":37793026539687,"sku":"KSR12PRO","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/products\/KS2CobraBagSpring.jpg?v=1677172560"},{"product_id":"genuine-leather-boxing-gloves","title":"Genuine Leather Boxing Gloves","description":"\u003cp\u003eThese genuine leather boxing gloves have been made to last. Made from premium quality cowhide leather for the ultimate durability and flexibility. They will mould to your hands over time and provide the best punching experience as well as hand protection. \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe leather itself is processed using \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eazo free, eco-friendly dyes so it will not harm the environment or cause skin irritation on contact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe padding is especially made for bag work. Made from high quality foam that will retain its firmness over time, it's constructed to offer a high level of protection and comfort. Together with a thumb lock and a wide strap that offers extra protection around the wrist, you'll feel you can go much harder with these gloves and get the most out of your bag sessions with minimum risk of injury.\u003c\/p\u003e\n\u003cp\u003eIt's highly recommended to use these gloves in conjunction with the 4.5m Kewlus Wraps. The inner lining of the gloves are made from material that will repel moisture so that it is retained in your wraps, allowing your gloves to stay dry for longer and be ready for your next session the following day. Palm air vents also help your gloves dry faster.\u003c\/p\u003e\n\u003ch2\u003eSize Recommendations\u003c\/h2\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003cstrong\u003eFighter Weight\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUp to 100 LBS\u003c\/td\u003e\n\u003ctd\u003e10 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e101 LBS - 150 LBS\u003c\/td\u003e\n\u003ctd\u003e12 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e151 LBS - 175 LBS\u003c\/td\u003e\n\u003ctd\u003e14 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver 175 LBS\u003c\/td\u003e\n\u003ctd\u003e16 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003eWhen you first put on these gloves they may feel a little tight and the inner lining inside may feel loose. Push out and spread out the inner lining with your fingers. Over the next few weeks the leather will stretch out a little and the gloves will begin to mould to your hands.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"10 oz","offer_id":40032176636071,"sku":"KLG10","price":95.0,"currency_code":"USD","in_stock":false},{"title":"12 oz","offer_id":40032176668839,"sku":"KLG12","price":95.0,"currency_code":"USD","in_stock":false},{"title":"14 oz","offer_id":40032176701607,"sku":"KLG14","price":95.0,"currency_code":"USD","in_stock":false},{"title":"16 oz","offer_id":40032176734375,"sku":"KLG16","price":95.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KewlusBoxingGlovesWB.jpg?v=1683690278"},{"product_id":"boxing-hand-wraps-180-inches","title":"Boxing Hand Wraps 180 Inches","description":"\u003cp\u003eThese Kewlus Boxing Hand Wraps are 180 inches long (4.5m) and are made from high quality, breathable and moisture absorbent material. With these wraps you'll be able to train harder and your boxing or MMA gloves will last longer. There is a thumb loop at one end for convenience. Check out the video of how to effectively wrap your hands for boxing so that they don't unravel and stay firm through your whole training session.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":40040210366631,"sku":"KW4.5","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/HandWraps180.jpg?v=1683691481"},{"product_id":"genuine-leather-ball-laced","title":"Old School Lace-Up Leather Target","description":"\u003cp\u003eThe genuine leather lace-up target ball has been made to take heavy punishment. The leather in this ball has been hand-stitched with a nylon thread for maximum durability. Although it takes a little longer to install compared to the zip-based balls, the lace-up system is a little more robust. This ball is ideal for heavy hitters and experienced boxers. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e when lacing up the ball it is \u003cstrong\u003every important to overlap the two sides\u003c\/strong\u003e slightly as show in the picture (and in the video). Leaving any gap in the lace-up section will create too much pressure on the seam just above the laces, and may cause it to split. \u003cstrong\u003eIf there's a tongue at the opening, make sure the tongue is on the outside of the Adapter\u003c\/strong\u003e and sits between the Adapter and the opening.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e please ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the adapter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball to stop the laces from coming loose.\u003c\/p\u003e\n\u003cp\u003eWatch this video to see how to install the Kewlus Ball Adapter: \u003ca title=\"Kewlus Cobra Ball Adapter\" href=\"https:\/\/youtu.be\/0cgKEgnbJn8\" target=\"_blank\"\u003ehttps:\/\/youtu.be\/0cgKEgnbJn8\u003c\/a\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43881066856707,"sku":"COBRABAG","price":95.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KewlusLeatherCobraBagBall_942c0a13-515f-40c9-9058-ad7e9646d0be.jpg?v=1684470561"},{"product_id":"speedball-adapter","title":"Target Ball Adapter","description":"\u003cp\u003eThe Kewlus Target Ball Adapter is made out of a nylon polymer plastic with outstanding bearing and wear properties. I designed it to perfectly match the shape of the bottom half of every Kewlus target ball. The wide opening at the top has a flexible, rubbery feel designed to hug to the shape of the target and absorb the impact of punches, while maintaining a rigid posture - key feature of the Kewlus Adapter. The neck of the adapter, which slides onto the ClickBar (or 3\/4 inch PVC pipe for DIY) has been extended to allow you to adjust the length of the top section.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e Please ensure that the tongue inside the ball sits between the adapter wall and the zip of the ball (see the instructional video). Also, please ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the adapter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball to help protect the zip (or laces).\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":41316786634919,"sku":"KADAPTER","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/products\/CobraBagAdapterV2.jpg?v=1677874550"},{"product_id":"clickbar","title":"Aluminium Click Bar","description":"\u003cp\u003eThe Click Bar is an aluminium tube 15 inches in length with push buttons at each end. It is the same outer diameter as a standard 3\/4 inch pipe. It is designed primarily to be used as part of the Kewlus Spring Cobra Bag Kit. One Click Bar connects the the Spring to the Click Mast and another Click Bar can be used to connect the Ball Adapter to the Spring.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":41323163615399,"sku":"CLICKBAR","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/ClickBar_23af48c6-275e-40f7-ad27-269db6eadc77.jpg?v=1744422680"},{"product_id":"pro-spring-end-covers","title":"Rubber Caps for the KS2 Spring","description":"\u003cp\u003eThe set of 2 rubber caps for the KS2 Spring. These are designed to screw onto each end of the Kewlus KS2 Cobra Bag Spring (not included). These caps make it easier to secure the spring onto a standard 3\/4 inch pipe (either galvanised or PVC) using a butterfly hose clamp around the collar of each spring end cap.\u003c\/p\u003e\n\u003cp\u003eYou can further secure the end covers to the spring using duct tape at the bottom of each cap, ensuring that they do not come off even with the hardest punches.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":41323678400679,"sku":"KENDCAPS","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/products\/CobraBagSpringCaps.jpg?v=1677102616"},{"product_id":"base-connector","title":"Base Connector","description":"\u003cp\u003eThe Kewlus Base Connector is made from a tough, fibre-composite material used in high performance car engine components. Designed to be used as a base mount for modular free-standing equipment like the Kewlus Cobra Bag in conjunction with the Click Mast (sold separately or as part of a kit).\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003ePlease Note: the Mast may be quite tight when inserting into the Base Connector. This is a good thing, but may present a challenge when inserting into the Connector. If that's the case, first mount the Base Connector onto the baseboard (or Paddles), then use a screwdriver through one of the top holes in the Mast to help you push it into the Connector Watch this video on how this can be done:\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/PAxFoe6VWVQ?si=QV--c9hbIHxrEbcS\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The Base Connector includes a stainless steel hose clamp. Once you insert the Click Mast into the Connector, the steel clamp must be clamped tightly around the collar of the Connector - see picture. Do not tighten the clamp without the mast.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuper Important:\u003c\/strong\u003e If you're using the Paddles with your Base Connector, please ensure that the silver locking screw and nut that comes with the Paddles is nice and tight at the centre of the Paddles. See this video for details: \u003ca href=\"https:\/\/youtu.be\/2Hy0FtnaLfo\" title=\"How to Assemble the Paddles\"\u003ehttps:\/\/youtu.be\/2Hy0FtnaLfo\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe Base Connector can be used in many different ways to set up a base for your cobra bag or spinning bar. Detailed \u0026amp; optimised base setup instructions are on this page:\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003ca title=\"How To Set Up Your Cobra Bag\" href=\"https:\/\/kewlus.com\/blogs\/support\/how-to-ks3-cobra-bag\"\u003ehttps:\/\/kewlus.com\/blogs\/support\/how-to-ks3-cobra-bag\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you need to pre-drill pilot holes to attach the base, use the base itself or use \u003c\/span\u003e\u003ca title=\"Multi Base Template\" href=\"https:\/\/bit.ly\/MultiBaseTemplate\"\u003ethis Base Connector PDF template file\u003c\/a\u003e\u003cspan\u003e as a template for marking the holes. \u003cstrong\u003eImportant note\u003c\/strong\u003e: make sure to print at 100% scale or the holes will not line up.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eScrews are not included with the Base Connector\u003c\/strong\u003e as the length and type of the screws will depend on the thickness and type of platform that you use. For screwing into a concrete floor you will need long screws with plugs. For most types of base connections I recommend getting screws that are at least 1.5 inches long.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":42101655994627,"sku":"KEWLBASE","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/products\/MultiBaseWithClamp.jpg?v=1681966246"},{"product_id":"mast","title":"Aluminium Mast","description":"\u003cp\u003eThe Alloy Mast is a modular component which, in conjunction with the \u003ca title=\"Kewlus Click Bar\" href=\"https:\/\/kewlus.com\/products\/clickbar\"\u003eClick Bar\u003c\/a\u003e (sold separately) and the \u003ca title=\"Base Connector\" href=\"https:\/\/kewlus.com\/products\/kewlus-multi-base\"\u003eBase Connector\u003c\/a\u003e (sold separately), makes up a height-adjustable base that can be used for the Kewlus Cobra Bag. It's made from strong, but lightweight aluminium and is designed to go into the Multi Base and be locked in with a metal collar that comes with the Base Connector.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePlease Note: the Alloy Mast may be quite tight when inserting into the Base Connector. This is a good thing, but may present a challenge when inserting into the base. If that's the case, first mount the base onto the baseboard (or Paddles), then use a screwdriver through one of the top holes in the Mast to help you push it into the base. Watch this video on how this can be done:\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/PAxFoe6VWVQ?si=QV--c9hbIHxrEbcS\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":42106255343875,"sku":"KLIKMAST","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/ClickMast4Holes.jpg?v=1745536377"},{"product_id":"sand-bags","title":"Pair of Block Sandbags","description":"\u003cp\u003eThe Block Sandbags, or \"Blocks\" are your go-to solution for maximum versatility. They mount on either side of the mast and come with long Velcro straps for easy carrying and secure fastening during high-intensity sessions. Compatible with all base types, these are especially suited to the \u003cstrong\u003eFreestanding kits\u003c\/strong\u003e that come with the \u003cstrong\u003ePlatform Paddles\u003c\/strong\u003e where wider ballast support is needed. The total weight is around 90 pounds (40kg) when filled to full capacity with sand.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen using the Blocks with Platform Paddles\u003c\/strong\u003e I recommend filling them with wet sand. This will increase the weight and also add firmness, which will reduce movement of the Platform Paddles substantially and improve the performance of your Freestanding Kewlus.\u003c\/p\u003e\n\u003cp\u003ePlease note that the sandbags do not come filled with sand. \u003cstrong\u003eTo keep the sand from seeping through cracks or accidentally spilling, line each sandbag with a large garbage bag before filling with sand.\u003c\/strong\u003e As you fill it, push the sand into the far corners so that it can be filled to maximum capacity. Once filled, roll up or tie up the opening of the garbage bag and close the velcro flap, ensuring that the two velcro sides are in alignment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCaution:\u003c\/strong\u003e each sandbag when filled with dry sand weighs around 45 pounds (20kg), and greater with wet sand. Take care of your back when lifting, keeping your back straight and using your legs.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":42112755859715,"sku":"SANDBAGS","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KewlusSandbagsV2.jpg?v=1695176012"},{"product_id":"cobra-bag-replacement-bladder","title":"Cobra Bag Replacement Bladder","description":"\u003cp\u003eReplacement bladder for the Kewlus leather cobra bag\/ball. Watch the video for guidance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e Make sure that the zip protection tongue on the inside of the ball sits between the Adapter wall and the zip. (see video for details)\u003c\/p\u003e\n\u003ch3\u003eInstructions for Replacing the Bladder:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDeflate the ball using the pump needle (without the pump);\u003c\/li\u003e\n\u003cli\u003eUnzip or unlace the ball and take out the Kewlus Ball Adapter;\u003c\/li\u003e\n\u003cli\u003eRemove the old bladder - it may be lightly glued at the nozzle end, but it will come unstuck as you pull it out;\u003c\/li\u003e\n\u003cli\u003eInsert the new bladder, lining up the air nozzle with the hole in the top of the ball;\u003c\/li\u003e\n\u003cli\u003eInsert the Kewlus Ball Adapter, making sure the tongue on the inside is sitting between the adapter wall and the zip or laces; and\u003c\/li\u003e\n\u003cli\u003eInflate the ball.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":42529910325507,"sku":"0Bladder","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/products\/CobraBagBladder_d3185abb-6b53-4fbb-9f3f-7b99220bf542.jpg?v=1677095673"},{"product_id":"platform-paddles","title":"Platform Paddles","description":"\u003cp\u003eThe set of 4 Platform Paddles are designed to plug straight into the \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-multi-base\" title=\"Kewlus Multi Base\"\u003eBase Connector\u003c\/a\u003e shown in red (\u003cstrong\u003esold separately\u003c\/strong\u003e) and act as a platform for the Kewlus Cobra Bag that can be used instead of a baseboard. These Paddles are made from a composite fibre material for maximum rigidity and strength. Simply plug them in and secure them using the 8 black screws and the silver central locking screw and nut.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e This version of the Paddles includes a chrome-coated screw and locking nut to lock the centre of the 4 Paddles to prevent flexing (see picture of the underside). \u003cstrong\u003ePlease ensure this screw and nut is firmly secured - watch the video below to see how.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\" title=\"Kewlus Sandbags\"\u003eKewlus Sandbags\u003c\/a\u003e (sold separately) have been designed to match the width of the paddles, with the corner of each sandbag intended to be positioned directly on top of each Paddle. For maximum weight I recommend filling the sandbags to the very top with wet sand, using a large garbage bag to line the inside of each sandbag. For optimum rigidity and performance I highly recommend getting an \u003ca title=\"Olympic Sleeve\" href=\"https:\/\/kewlus.com\/products\/olympic-plate-sleeve\"\u003eOlympic Sleeve\u003c\/a\u003e and adding an Olympic weight, placed on top of the sandbags.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":42868753957123,"sku":"KPADDLES","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PaddleSet.jpg?v=1743641867"},{"product_id":"cobra-bag-core-kit","title":"Classic (KS2) Core Kit (No Base)","description":"\u003cp\u003e\n  The \u003cstrong\u003eClassic (KS2) Core Kit\u003c\/strong\u003e provides the controlled,\n  responsive rebound of the KS2 Classic Spring in an affordable no-base setup\n  designed for use with a solid DIY base. It is an excellent starting point\n  for anyone new to reflex-bag training, while still giving you the flexibility\n  to upgrade individual components as your training progresses.\n\u003c\/p\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\n\u003cp\u003e\n  This kit is ideal for anyone who wants a quality cobra bag at the lowest\n  possible starting price and is comfortable making their own base. The\n  included Base Connector can be mounted onto a layered timber-board base or\n  permanently secured to a suitable solid floor, such as a wooden deck.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003ePlease note:\u003c\/strong\u003e This Core Kit does not include a freestanding\n  base, Platform Paddles or sandbags.\n\u003c\/p\u003e\n\n\u003ch2\u003eMake Your Own Solid DIY Base\u003c\/h2\u003e\n\n\u003cp\u003e\n  The recommended setup is a solid DIY base made by gluing multiple layers of\n  MDF board or particle board together, then securely mounting the Base\n  Connector onto the top. This creates an extremely sturdy and affordable base\n  that can be customised to suit your preferred height.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  You can also attach castor wheels to the back of your DIY base, making it\n  much easier to move the cobra bag when needed. Follow my\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e\n    step-by-step DIY base guide\n  \u003c\/a\u003e\n  for the recommended materials, videos and latest design improvements.\n\u003c\/p\u003e\n\n\u003cdiv class=\"kit-important-note\"\u003e\n  \u003cstrong\u003eImportant Assembly Note:\u003c\/strong\u003e Please read the\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/kit-instructions\"\u003e\n    assembly instructions\n  \u003c\/a\u003e\n  and\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e\n    DIY base guide\n  \u003c\/a\u003e\n  fully before use. The target ball, Spring End Covers and Base Connector must\n  be assembled and secured correctly to ensure reliable performance and\n  protect your warranty.\n\u003c\/div\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eWhat’s Included\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-spring-ks2\"\u003e\n            Classic (KS2) Spring\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Second-generation Kewlus spring designed to provide a controlled and\n        responsive rebound. It fits onto the Click Bar and is also compatible\n        with standard ¾-inch pipes for DIY setups.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e2 × Classic Spring End Covers:\u003c\/strong\u003e\n        Rubber covers that screw onto the ends of the KS2 Spring, allowing the\n        Polymer Red Bar and Aluminium Click Bar to click securely into place.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003eClassic Target Ball:\u003c\/strong\u003e\n        Lightweight synthetic target ball designed to complement the\n        controlled rebound of the KS2 Spring.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/speedball-adapter\"\u003e\n            Target Ball Adapter\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Extendable adapter designed to hold the target ball securely while\n        allowing you to adjust the reach of the cobra bag.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/red-bar\"\u003e\n            Polymer Red Bar\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight top bar designed to increase the speed and intensity of\n        the rebound.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/clickbar\"\u003e\n            Aluminium Click Bar\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, rust-free bar used below the spring for overall height\n        adjustment.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/mast\"\u003e\n            Alloy Mast\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, rust-free aluminium mast designed for general home\n        training use.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/base-connector\"\u003e\n            Base Connector\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Rigid composite-fibre connector designed to secure the mast firmly to\n        your DIY base. Includes the stainless-steel collar clamp used to lock\n        the mast into place.\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eDIY Base, Height \u0026amp; Upgrade Tips\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cp\u003e\n      For the best stability, make a DIY base that is at least 3 inches thick.\n      Use mounting screws or bolts that are appropriate for the thickness and\n      construction of your base.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Ideally, the top of the target ball should sit at around chin height when\n      you are standing upright in front of the bag. The mast and Click Bar allow\n      you to adjust the overall height. Taller users can also glue additional\n      layers onto the DIY base to add extra height.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      A taller base also allows you to use a shorter top section while\n      maintaining a comfortable target height. This can improve the speed and\n      responsiveness of the rebound.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      The Classic (KS2) Core Kit is part of the fully modular Kewlus system. As\n      your timing, accuracy and coordination improve, you can upgrade\n      individual components rather than replacing the entire cobra bag.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      For a faster and more demanding rebound, you can upgrade to the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/cobra-bag-spring-ks3\"\u003e\n        Prime (KS3) Spring\n      \u003c\/a\u003e.\n      For a premium no-base setup, consider the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-cobra-bag-ks3-core-kit\"\u003e\n        Prime (KS3) Core Kit\n      \u003c\/a\u003e.\n      For maximum rigidity and additional height, consider the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/o3-cobra-bag-kit\"\u003e\n        O\u003csub\u003e3\u003c\/sub\u003e Kit\n      \u003c\/a\u003e\n      with its OctaBase.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Because this Core Kit does not rely on a large moulded plastic base, it\n      also offers a more sustainable long-term setup. Every major Kewlus\n      component can be replaced individually if it eventually wears out, so\n      your cobra bag can continue evolving with your training rather than\n      being discarded and replaced.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43080911159555,"sku":"KBAGCORE","price":245.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KS2CoreKit.jpg?v=1717794229"},{"product_id":"cobra-bag-spring-ks3","title":"The Prime (KS3) Spring","description":"\u003cp\u003eThe third generation Kewlus Cobra Bag Spring (KS3), which I have named \"\u003cstrong\u003ePrime\u003c\/strong\u003e\", is the \u003cstrong\u003efirst of it's kind in the world\u003c\/strong\u003e to be made from a \u003cstrong\u003especially formulated metal\u003c\/strong\u003e. Now tested and proven to perform and last for years in numerous boxing gyms around the globe, it is engineered to outperform and outlast every other type of spring. Due to the proven performance and reliability over the last two years it is the spring that comes with all of the KS3 and O3 kits.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eSignature Metal Technology\u003c\/h2\u003e\n\u003cp\u003eAll KS3 springs are engineered from a unique formula metal that achieves the perfect balance between flexibility and springiness. This proprietary alloy delivers exceptional rebound performance and extreme longevity, ensuring consistent, high-quality training every time. Moreover, its remarkable adaptability allows you to easily adjust the spring -whether by bending or straightening (fully assembled) to achieve your desired angle or to correct any slight deviation. This means that even if the spring develops a minor bend over time, you can restore it to perfect alignment, maintaining peak performance under all conditions.\u003c\/p\u003e\n\u003ch2\u003eVersatile Configuration Options\u003c\/h2\u003e\n\u003cp\u003eThe KS3 is designed with flexibility in mind. Its innovative connectors not only allow you to make minor height adjustments at either end, but also convert the cobra bag into a shorter version by plugging it directly into the Base Connector. This adaptability makes the Kewlus accessible for young athletes as early as age five. Additionally, you can mount the short version upside-down to create the ultimate slip bag or install it horizontally on a wall - ideal for practicing uppercuts and hooks. These dynamic configuration options empower you to tailor your training environment to meet diverse needs and skill levels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note that trying to adapt the Kewlus Spring to another cobra bag of a different brand is unlikely to work\u003c\/strong\u003e due to important parameters such as the spring connector diameter, as well as the length and weight of the top section of the bag. Heavy top section bags will result in slow performance.\u003c\/p\u003e\n\u003ch2\u003eImportant: Setup \u0026amp; Maintenance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBefore using the KS3 Spring, please read the \u003ca data-mce-fragment=\"1\" title=\"KS3 Spring Maintenance\" href=\"https:\/\/kewlus.com\/blogs\/support\/ks3-cobra-bag-spring-maintenance\"\u003eKS3 Spring Maintenance Guide\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note that the red connectors at the ends of the spring are screwed in and secured with a type of adhesive seal. If for any reason the adhesive seal is broken, please apply epoxy glue to the thread of the connector and screw it back in, leaving in for 24 hours to seal. Here's a link to the type of clear epoxy glue that is suitable for this: \u003ca href=\"https:\/\/amzn.to\/3B2tGVu\" title=\"Epoxy Glue on Amazon\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ehttps:\/\/amzn.to\/3B2tGVu\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43537207361795,"sku":"KS3SPR01","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PrimeSpring_KS3.jpg?v=1749326029"},{"product_id":"kewlus-cobra-bag-ks3-core-kit","title":"Prime (KS3) Core Kit (No Base)","description":"\u003cp\u003e\n  The \u003cstrong\u003ePrime (KS3) Core Kit\u003c\/strong\u003e combines the fast, responsive\n  rebound of the KS3 Prime Spring with a no-base setup designed for maximum\n  performance from a solid DIY base. It is an excellent choice for anyone who\n  wants a premium cobra bag while keeping the overall cost down by making their\n  own base or securely mounting the bag to a suitable solid surface.\n\u003c\/p\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\n\u003cp\u003e\n  This kit is ideal for anyone who wants the high-performance rebound of the\n  KS3 Prime Spring and is comfortable making a simple timber-board base. A\n  solid DIY base can provide excellent rigidity while costing considerably\n  less than a complete freestanding platform.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  The Base Connector can also be permanently secured to a suitable solid floor\n  or structural surface for an extremely rigid setup.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003ePlease note:\u003c\/strong\u003e This Core Kit does not include Platform\n  Paddles. A solid DIY base or secure mounting surface is required. The\n  included sandbags are designed to weigh down a DIY board base and improve\n  stability during training.\n\u003c\/p\u003e\n\n\u003ch2\u003eMake Your Own Solid DIY Base\u003c\/h2\u003e\n\n\u003cp\u003e\n  The recommended setup is a solid DIY base made by gluing multiple layers of\n  MDF board or particle board together, then securely mounting the Base\n  Connector onto the top. This creates an extremely sturdy and affordable base\n  that can be customised to suit your preferred height.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  The included Kewlus Sandbags can then be placed around the mast to add\n  weight and stability. You can also attach castor wheels to the back of your\n  DIY base, making it much easier to move the cobra bag when needed.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Follow my\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e\n    step-by-step DIY base guide\n  \u003c\/a\u003e\n  for the recommended materials, videos and latest design improvements.\n\u003c\/p\u003e\n\n\u003ch2\u003eSuitable for Small Children\u003c\/h2\u003e\n\n\u003cp\u003e\n  The KS3 Core Kit can also be converted into a shorter setup for small\n  children. Simply remove the Mast and Click Bar, insert the\n  \u003cstrong\u003ePrime (KS3) Spring\u003c\/strong\u003e directly into the Base Connector and\n  tighten the steel clamp around the Base Connector collar to secure the\n  spring firmly in place.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  This creates a compact version of the cobra bag at a comfortable height for\n  younger users. As they grow, the Mast and Click Bar can be added gradually\n  to increase the height.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eAdult supervision:\u003c\/strong\u003e An adult should always assemble the bag\n  and supervise children during use.\n\u003c\/p\u003e\n\n\u003cdiv class=\"kit-important-note\"\u003e\n  \u003cstrong\u003eImportant Assembly Note:\u003c\/strong\u003e Please read the relevant sections\n  of the\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/kit-instructions\/ks3-cobra-bag-freestanding\"\u003e\n    assembly instructions\n  \u003c\/a\u003e\n  and the\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e\n    DIY base guide\n  \u003c\/a\u003e\n  fully before use. The target ball and Base Connector must be assembled and\n  secured correctly to ensure reliable performance and protect your warranty.\n\u003c\/div\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eWhat’s Included\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/cobra-bag-spring-ks3\"\u003e\n            Prime (KS3) Spring\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Third-generation spring made from Kewlus Signature Metal Technology\n        for outstanding rebound performance and longevity.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/max-power-leather-cobra-bag-ball\"\u003e\n            Genuine Leather Prime Target Ball\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Premium leather target ball designed to provide an ideal balance of\n        speed, power and durability.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/speedball-adapter\"\u003e\n            Target Ball Adapter\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Extendable adapter designed to hold the target ball securely while\n        maintaining top-section rigidity and fast rebound performance.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/clickbar\"\u003e\n            2 × Click Bars\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, rust-free aluminium bars used for overall height\n        adjustment and control of the bag’s range of movement.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/mast\"\u003e\n            Alloy Mast\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, rust-free aluminium mast designed for general home\n        training use.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/base-connector\"\u003e\n            Base Connector\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Rigid composite-fibre connector designed to secure the mast firmly to\n        your DIY base. Includes the stainless-steel collar clamp used to lock\n        the mast into place.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003e\n            Pair of Kewlus Sandbags\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Designed to add weight and stability when placed around the mast on\n        your DIY base.\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eDIY Base, Setup \u0026amp; Performance Tips\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cp\u003e\n      For the best stability, make a DIY base that is at least 3 inches thick.\n      Use multiple layers of MDF board or particle board and secure the Base\n      Connector firmly using screws or bolts that are appropriate for the\n      thickness and construction of your base.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Fill the included sandbags completely to the top. Wet sand is ideal\n      because it provides greater weight and stability. Use a heavy-duty\n      plastic bag as a liner inside each sandbag.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Ideally, the top of the target ball should sit at around chin height when\n      you are standing upright in front of the bag. The mast and lower Click\n      Bar allow you to adjust the overall height. Taller users can also glue\n      additional layers onto the DIY base to add extra height.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      A taller base allows you to use a shorter top section while maintaining a\n      comfortable target height. This increases the speed and responsiveness\n      of the rebound.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      For additional weight and improved performance, consider adding an\n      \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003e\n        optional second pair of Kewlus Sandbags\n      \u003c\/a\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      The optional\n      \u003ca href=\"https:\/\/kewlus.com\/products\/olympic-plate-sleeve\"\u003e\n        Olympic Weight Plate Sleeve\n      \u003c\/a\u003e\n      allows you to place one or two of your own Olympic weight plates above\n      the sandbags. This increases the rigidity of the mast and improves\n      rebound performance.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      For a faster and more intense rebound, the top Click Bar can be replaced\n      with the optional\n      \u003ca href=\"https:\/\/kewlus.com\/products\/red-bar\"\u003e\n        Polymer Red Bar\n      \u003c\/a\u003e.\n      Its shorter and lighter design reduces the length and weight of the top\n      section.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      For a ready-made freestanding base, consider the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/ks3-boxing-cobra-bag\"\u003e\n        Prime (KS3) Freestanding Kit\n      \u003c\/a\u003e.\n      For maximum rigidity and additional height, consider the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/o3-cobra-bag-kit\"\u003e\n        O\u003csub\u003e3\u003c\/sub\u003e Kit\n      \u003c\/a\u003e\n      with its OctaBase.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Because this Core Kit does not rely on a large moulded plastic base, it\n      also offers a more sustainable long-term setup. Every major Kewlus\n      component can be replaced individually if it eventually wears out, so\n      your cobra bag can continue evolving with your training rather than\n      being discarded and replaced.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43587471737091,"sku":"KS3CORST","price":395.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KS3CobraBagCoreBags.jpg?v=1715368397"},{"product_id":"push-buttons","title":"Dual Push Buttons 5\/16 inch (8mm) - Set of 2","description":"\u003cp\u003eThese Push Buttons come in a pack of 2 and can be used to make your own custom size PVC pipe sections. For example, you may want to make a custom length bar for the top section of your cobra bag - just grab a standard 3\/4 inch PVC pipe from your local hardware store (make sure the outer diameter is 1.05 inches or 26.7mm); Cut it to a suitable length and drill a 5\/16 inch (8mm) through hole roughly 2.5 inches from each end. Insert the Dual Push Button at each end and you're good to go!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e These are made from a brittle material that is designed to keep its shape, but can also break if forced. When inserting into the pipe, please only squeeze together the very ends (see picture). \u003cstrong\u003eDO NOT squeeze in the middle as it will likely break.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e If you make custom sections using PVC pipes, I recommend spray-painting them. The paint will protect the PVC from UV damage, so they will last longer. They will also look better!\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43762789941507,"sku":"PUSHBTNS","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/products\/SpringButtons2Set.jpg?v=1677093790"},{"product_id":"hose-clamp-115","title":"Stainless Steel Hose Clamp 1-1.5 Inches","description":"\u003cp\u003eThis is a high grade stainless steel clamp used with the Base Connector to tighten the collar and increase rigidity of the Mast. It is included with the Base Connector, but can also be purchased separately.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43881273164035,"sku":"CLAMP115","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/products\/115HoseClamp.jpg?v=1681950277"},{"product_id":"max-speed-cobra-bag-ball","title":"Classic Target","description":"\u003cp\u003eThe Classic Target ball is made from synthetic leather and is lighter than the genuine leather Prime Target. The Classic Target may not last as long, but it will move faster due to the reduction in weight. This ball is ideal for basic use at home or as an occasional switch over from the Prime Target to increase the pace of your training. Get it as a \u003ca href=\"https:\/\/kewlus.com\/products\/max-speed-ball-adapter-combo\"\u003ecombo\u003c\/a\u003e with an Adapter for quick and easy switching.\u003c\/p\u003e\n\u003cp\u003eWant to \u003cstrong\u003eswitch targets mid-session\u003c\/strong\u003e? Get the \u003ca href=\"https:\/\/kewlus.com\/products\/max-speed-ball-adapter-combo\"\u003eClassic Target + Adapter Combo\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca title=\"How To Change The Bladder\" href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43883620663555,"sku":"ZIPBAGPU","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/ClassicTargetBall.jpg?v=1742015334"},{"product_id":"ks3-boxing-cobra-bag","title":"Prime (KS3) Freestanding Kit","description":"\u003cp\u003e\n  The \u003cstrong\u003ePrime (KS3) Freestanding Kit\u003c\/strong\u003e combines the fast,\n  responsive rebound of the KS3 Prime Spring with a compact base that is easy\n  to set up, pack away and take with you. Its height can be adjusted for both\n  adults and children, making it an excellent all-round cobra bag for home\n  training.\n\u003c\/p\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\n\u003cp\u003e\n  This kit is ideal for anyone who wants a high-performance cobra bag with a\n  simple freestanding setup, without the need to make a DIY base. The Platform\n  Paddles come apart completely, allowing the kit to fit into a compact box\n  measuring just 19 × 7 × 7 inches. This also makes it a convenient option for\n  travel or for packing away between training sessions.\n\u003c\/p\u003e\n\n\u003ch2\u003eSuitable for Small Children\u003c\/h2\u003e\n\n\u003cdiv style=\"text-align: right;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KS3CobraBagFreestandingShort_240x240.jpg?v=1745536347\" alt=\"KS3 Freestanding Kit converted into a shorter setup for small children\" style=\"float: right; width: 240px; max-width: 44%; height: auto; margin: 0 0 14px 18px; border: 1px solid #d9d9d9; border-radius: 8px;\"\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\n  The KS3 Freestanding Kit can also be converted into a shorter setup for small\n  children as young as five. Simply remove the Mast and Click Bar, insert the\n  \u003cstrong\u003ePrime (KS3) Spring\u003c\/strong\u003e directly into the Base Connector and\n  tighten the steel clamp around the Base Connector collar to secure the spring\n  firmly in place.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  This creates a compact version of the cobra bag at a comfortable height for\n  younger users. As they grow, the Mast and Click Bar can be added gradually to\n  increase the height.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eAdult supervision:\u003c\/strong\u003e An adult should always assemble the bag\n  and supervise children during use.\n\u003c\/p\u003e\n\n\u003cdiv class=\"kit-clear\"\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"kit-important-note\"\u003e\n  \u003cstrong\u003eImportant Assembly Note:\u003c\/strong\u003e Please read the\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/kit-instructions\/ks3-cobra-bag-freestanding\"\u003e\n    assembly instructions\n  \u003c\/a\u003e\n  fully before use. The target ball and Platform Paddles must be assembled\n  correctly to ensure reliable performance and protect your warranty.\n\u003c\/div\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eWhat’s Included\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/cobra-bag-spring-ks3\"\u003e\n            Prime (KS3) Spring\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Third-generation spring made from a unique formulation of metals for\n        outstanding rebound performance and longevity.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/max-power-leather-cobra-bag-ball\"\u003e\n            Genuine Leather Prime Target Ball\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Premium leather target ball designed to provide an ideal balance of\n        speed, power and durability.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/speedball-adapter\"\u003e\n            Target Ball Adapter\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Extendable adapter designed to hold the target ball securely while\n        maintaining top-section rigidity and fast rebound performance.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/clickbar\"\u003e\n            2 × Click Bars\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, rust-free aluminium bars used for overall height\n        adjustment and control of the bag’s range of movement.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/red-bar\"\u003e\n            Polymer Red Bar\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        A lighter and shorter top bar for increasing the speed and intensity of\n        the rebound.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/mast\"\u003e\n            Alloy Mast\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, rust-free aluminium mast designed for general home\n        training use.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/base-connector\"\u003e\n            Base Connector\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Rigid composite-fibre connector designed to secure the mast firmly to\n        the Platform Paddles.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003e\n            Pair of Kewlus Sandbags\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Designed to stabilize the base when filled fully with sand.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/platform-paddles\"\u003e\n            Platform Paddles\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Strong composite-fibre paddles that come apart completely for compact\n        storage and travel.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/olympic-plate-sleeve\"\u003e\n            Olympic Weight Plate Sleeve\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Slides onto the mast so that one or two of your own Olympic weight\n        plates can be placed above the sandbags for increased base rigidity and\n        improved rebound performance.\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eSetup \u0026amp; Performance Tips\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cp\u003e\n      For the best performance, fill the included sandbags completely to the\n      top. Wet sand is ideal because it provides greater weight and stability.\n      Use a heavy-duty plastic bag as a liner inside each sandbag.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      The included Olympic Weight Plate Sleeve allows you to place one or two\n      of your own Olympic weight plates above the sandbags. This increases the\n      rigidity of the mast and improves rebound performance.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      If you do not have an Olympic weight plate available, adding an\n      \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003e\n        optional second pair of Kewlus Sandbags\n      \u003c\/a\u003e\n      is highly recommended.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      For maximum rigidity and additional height, consider the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/o3-cobra-bag-kit\"\u003e\n        O\u003csub\u003e3\u003c\/sub\u003e Kit\n      \u003c\/a\u003e\n      with its OctaBase, or combine the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-cobra-bag-ks3-core-kit\"\u003e\n        KS3 Core Kit\n      \u003c\/a\u003e\n      with a\n      \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e\n        DIY base\n      \u003c\/a\u003e.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43918581301507,"sku":"KS3COBRA","price":445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KS3CobraBagFreestanding.jpg?v=1699999765"},{"product_id":"max-speed-ball-adapter-combo","title":"Classic Target \u0026 Adapter Combo","description":"\u003cp\u003eThe lightweight synthetic Classic Target ball with the matching Kewlus Adapter will allow you to quickly switch targets in mid session. This target is made from a lightweight synthetic fibre material that will rebound that little bit faster than the genuine leather Prime Target.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\" title=\"How To Change The Bladder\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":43919823241475,"sku":"MAXCOMBO","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/ClassicTargetBallAdapter.jpg?v=1742018661"},{"product_id":"ks2-cobra-bag-freestanding","title":"Classic (KS2) Freestanding Kit","description":"\u003cp\u003eThe \u003cstrong\u003eClassic (KS2) Freestanding Kit\u003c\/strong\u003e combines the controlled, responsive rebound of the KS2 Spring with a compact base that is easy to set up, pack away and take with you. It is an excellent starting point for anyone who is new to reflex-bag training, while still providing the modular flexibility to upgrade individual components as their training progresses.\u003c\/p\u003e\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eThis kit is ideal for anyone who wants a quality cobra bag with a manageable rebound and a simple freestanding setup, without the need to make a DIY base. The Platform Paddles come apart completely for compact storage and travel.\u003c\/p\u003e\n\u003cdiv class=\"kit-important-note\"\u003e\n\u003cstrong\u003eImportant Assembly Note:\u003c\/strong\u003e Please read the \u003ca href=\"https:\/\/kewlus.com\/blogs\/kit-instructions\/ks2-cobra-bag-freestanding\"\u003e assembly instructions \u003c\/a\u003e fully before use. The \u003cstrong\u003eTarget ball and Platform Paddles must be assembled correctly\u003c\/strong\u003e to ensure reliable performance and protect your warranty.\u003c\/div\u003e\n\u003cdetails class=\"kit-foldout\" open=\"\"\u003e\n\u003csummary\u003eWhat’s Included\u003c\/summary\u003e\n\u003cdiv class=\"kit-foldout-content\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-spring-ks2\"\u003e Classic (KS2) Spring \u003c\/a\u003e: \u003c\/strong\u003e Second-generation Kewlus spring designed to provide a controlled and responsive rebound. It fits onto the Click Bar and is also compatible with standard ¾-inch pipes for DIY setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 × Classic Spring End Covers:\u003c\/strong\u003e Rubber covers that screw onto the ends of the KS2 Spring, allowing the Polymer Red Bar and Aluminium Click Bar to click securely into place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic Target Ball:\u003c\/strong\u003e Lightweight synthetic target ball designed to complement the controlled rebound of the KS2 Spring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/speedball-adapter\"\u003e Target Ball Adapter \u003c\/a\u003e: \u003c\/strong\u003e Extendable adapter designed to hold the target ball securely while allowing you to adjust the reach of the cobra bag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/red-bar\"\u003e Polymer Red Bar \u003c\/a\u003e: \u003c\/strong\u003e Lightweight top bar designed to increase the speed and intensity of the rebound.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/clickbar\"\u003e Aluminium Click Bar \u003c\/a\u003e: \u003c\/strong\u003e Lightweight, rust-free bar used below the spring for overall height adjustment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/mast\"\u003e Alloy Mast \u003c\/a\u003e: \u003c\/strong\u003e Lightweight, rust-free aluminium mast designed for general home training use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/base-connector\"\u003e Base Connector \u003c\/a\u003e: \u003c\/strong\u003e Rigid composite-fibre connector designed to secure the mast firmly to the Platform Paddles. Includes the stainless-steel collar clamp used to lock the mast into place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003e Pair of Kewlus Sandbags \u003c\/a\u003e: \u003c\/strong\u003e Purpose-designed sandbags that stabilize the base when filled fully with sand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/platform-paddles\"\u003e 4 × Platform Paddles with Mounting Hardware \u003c\/a\u003e: \u003c\/strong\u003e Strong composite-fibre paddles that form the freestanding base and come apart completely for compact storage and travel. Includes the four mounting screws, central locking screw and nut.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e \u003ca href=\"https:\/\/kewlus.com\/products\/olympic-plate-sleeve\"\u003e Olympic Weight Plate Sleeve \u003c\/a\u003e: \u003c\/strong\u003e Slides onto the mast so that one or two of your own Olympic weight plates can be placed above the sandbags for increased base rigidity and improved rebound performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"kit-foldout\"\u003e\n\u003csummary\u003eSetup \u0026amp; Performance Tips\u003c\/summary\u003e\n\u003cdiv class=\"kit-foldout-content\"\u003e\n\u003cp\u003eFor the best performance, fill the included sandbags completely to the top. Wet sand is ideal because it provides greater weight and stability. Use a heavy-duty plastic bag as a liner inside each sandbag.\u003c\/p\u003e\n\u003cp\u003eThe included Olympic Weight Plate Sleeve allows you to place one or two of your own Olympic weight plates above the sandbags. This increases the rigidity of the mast and improves rebound performance.\u003c\/p\u003e\n\u003cp\u003eIf you do not have an Olympic weight plate available, adding an \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003e optional second pair of Kewlus Sandbags \u003c\/a\u003e is highly recommended.\u003c\/p\u003e\n\u003cp\u003eThe Classic (KS2) Freestanding Kit is part of the fully modular Kewlus system. As your timing, accuracy and coordination improve, you can upgrade individual components rather than replacing the entire cobra bag.\u003c\/p\u003e\n\u003cp\u003eFor a faster and more demanding rebound, you can upgrade to the \u003ca href=\"https:\/\/kewlus.com\/products\/cobra-bag-spring-ks3\"\u003e Prime (KS3) Spring \u003c\/a\u003e. For maximum base rigidity and additional height, consider the \u003ca href=\"https:\/\/kewlus.com\/products\/o3-cobra-bag-kit\"\u003e O\u003csub\u003e3\u003c\/sub\u003e Kit \u003c\/a\u003e with its OctaBase, or combine the \u003ca href=\"https:\/\/kewlus.com\/products\/cobra-bag-core-kit\"\u003e Classic (KS2) Core Kit \u003c\/a\u003e with a \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e DIY base \u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eBecause every major component is replaceable, your Kewlus can continue evolving with your training rather than being discarded and replaced.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"kit-foldout\"\u003e\n\u003csummary\u003eHeight Range \u0026amp; Customisation\u003c\/summary\u003e\n\u003cdiv class=\"kit-foldout-content\"\u003e\n\u003cp\u003eThe standard height range is approximately 4′5″ to 5′0″ (135 to 152 cm) from the floor to the top of the target ball. Ideally, the top of the ball should sit at around chin height when you are standing upright in front of the bag.\u003c\/p\u003e\n\u003cp\u003eFor taller users, the height can be extended through customisation. \u003ca href=\"https:\/\/youtu.be\/m4kyvmuwQ_Q\" rel=\"noopener\" target=\"_blank\"\u003e Watch this height-extension video \u003c\/a\u003e for one option.\u003c\/p\u003e\n\u003cp\u003eYou can also replace the Polymer Red Bar in the top section with an additional \u003ca href=\"https:\/\/kewlus.com\/products\/clickbar\"\u003e Aluminium Click Bar \u003c\/a\u003e. This adds approximately 3 inches of height, although the slightly heavier top section will reduce the rebound speed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"kit-foldout\"\u003e\n\u003csummary\u003eClassic (KS2), Prime (KS3) or O\u003csub\u003e3\u003c\/sub\u003e?\u003c\/summary\u003e\n\u003cdiv class=\"kit-foldout-content\"\u003e\n\u003cp\u003eNot sure which setup is right for you? In this video, I compare the Classic (KS2) and Prime (KS3) versions and explain the differences in their rebound characteristics. Remember that the Kewlus system is modular, so you can easily upgrade individual components later.\u003c\/p\u003e\n\u003cdiv style=\"position: relative; width: 100%; padding-bottom: 56.25%; height: 0; overflow: hidden; margin-top: 16px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/b2epFIm0IRU\" title=\"Which Kewlus Cobra Bag Is Best for You?\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":44000320848131,"sku":"KS2COBRA","price":365.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/KS2FreeStanding.jpg?v=1717791631"},{"product_id":"red-bar","title":"Polymer Red Bar","description":"\u003cp\u003eThe Red Bar has been designed to increase the speed of the Kewlus Cobra Bag. It's specifically made for switching out the Click Bar in the top section of the cobra bag. The Red Bar is made from lightweight polymer material and is 3 inches shorter than the Click Bar, making it almost 1\/3 of the weight, resulting in a \u003cstrong\u003emuch faster cobra bag\u003c\/strong\u003e. The Red Bar has the same outer diameter as a standard 3\/4 inch pipe so it is compatible with all previous components and DIY projects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e, the Red Bar is not intended for the bottom section. Please \u003cstrong\u003eonly use it in the top section\u003c\/strong\u003e of the cobra bag as shown in the second picture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso Note\u003c\/strong\u003e, the Red Bar is 3 inches shorter than the Click Bar, so the overall maximum height of the cobra bag will be 3 inches shorter when replacing the Click Bar with the Red Bar.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":44099912761603,"sku":"REDBAR12","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/RedBar_9e6f93b7-aee4-495b-985e-4ae6de596b7a.jpg?v=1749326029"},{"product_id":"max-power-leather-cobra-bag-ball","title":"Prime Target","description":"\u003cp\u003eThe \"Prime\" Target ball, made from genuine leather has now stood the test of time in multiple boxing gyms around the world. Refined over the years, it is the epitome of the ideal reflex punching bag target that is light and strong, striking the \u003cstrong\u003eperfect balance between speed and power\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e Fully inflated it is 6.5 inches wide and 10 inches in height.\u003c\/p\u003e\n\u003cp\u003eWant to \u003cstrong\u003eswitch targets mid-session\u003c\/strong\u003e? Get the \u003ca href=\"https:\/\/kewlus.com\/products\/max-power-leather-ball-adapter-combo\"\u003ePrime Target + Adapter Combo\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\" title=\"How To Change The Bladder\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":44128129450243,"sku":"ZIPBAGLT","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PrimeTargetBall.jpg?v=1749326029"},{"product_id":"max-power-leather-ball-adapter-combo","title":"Prime Target \u0026 Adapter Combo","description":"\u003cp\u003eThe Prime Target ball, made from genuine leather with the matching Kewlus Adapter will allow you to quickly switch targets in mid session. This target ball is made from genuine leather for the ultimate shape retention and power without compromising on speed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e Fully inflated, this target is 6.5 inches wide and 10 inches in height (not including the Adapter).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca title=\"How To Change The Bladder\" href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":44128178110723,"sku":"POWCOMBO","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PrimeTargetBallAdapter.jpg?v=1742016411"},{"product_id":"olympic-plate-sleeve","title":"Olympic Weight Plate Sleeve","description":"\u003cp\u003eThe Kewlus Olympic Weight Plate Sleeve has been designed to facilitate the use of Olympic weight plates with the Kewlus Cobra Bag. The Sleeve slides onto the Mast, ideally sitting on top of the Sandbags. One or two standard Olympic weight plates can then slide onto the Sleeve - plates with the standard 50mm hole diameter. The Sleeve's purpose is to fill the gap between the mast and the weight plate, making the mast more rigid.\u003c\/p\u003e\n\u003cp\u003eNote, the Sleeve is 4.5 inches long (not including the rim). If you have thick weight plate, then you can use 2 Sleeves facing each other to accommodate them both.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e If the weight plate is slightly loose when you place it over the Sleeve (some plates might have a hole that is slightly larger than the standard 50mm diameter), wrap a couple of rounds of duct tape around the Sleeve for a tighter fit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":44142494023939,"sku":"KOSLEEVE","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/OlympicSleeve_236ae4cf-b78e-491d-b849-2dbf6ac79d2f.jpg?v=1749326029"},{"product_id":"o3-cobra-bag-kit","title":"The O₃ Kit","description":"\u003cp\u003eThe O₃ is the flagship Kewlus cobra bag system, combining the fast, crisp rebound of the Striker (KS3) Spring with the exceptional rigidity of the handcrafted OctaBase and Stainless Steel Mast. Built for demanding home training and real boxing gym use, it delivers the highest level of performance, durability and stability in the Kewlus modular range.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Y8s52WcjOzY?si=s5Vjvg5a7hp3XjvU\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The video above shows the O₃ fitted with the optional Speed Target, a smaller, faster and more challenging target designed for advanced reflex training. It is not included with the O₃, but can be added separately as the \u003ca href=\"\/en-kr\/products\/speed-target-ball-adapter-combo\"\u003eSpeed Target \u0026amp; Adapter Combo\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\n\u003cp\u003eChoose the O₃ if you want maximum rigidity and long-term durability, particularly if your cobra bag will remain set up permanently in a home gym, boxing gym or training studio. The OctaBase provides a solid platform with additional height, while the Stainless Steel Mast is designed to withstand demanding use over time.\u003c\/p\u003e\n\n\u003cp\u003eIf compact storage and portability are more important, the \u003ca href=\"\/en-kr\/products\/ks3-boxing-cobra-bag\"\u003ePrime (KS3) Freestanding Kit\u003c\/a\u003e may be the better option.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant Assembly Note:\u003c\/strong\u003e Please read the \u003ca href=\"\/en-kr\/blogs\/kit-instructions\/o3-cobra-bag\"\u003eassembly instructions\u003c\/a\u003e fully before use. Correct assembly of the OctaBase, Base Connector and Donut Sandbags is important for reliable performance and to protect your warranty.\u003c\/p\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eBox Contents\u003c\/summary\u003e\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/striker-cobra-bag-spring\"\u003e\u003cstrong\u003eStriker (KS3) Spring\u003c\/strong\u003e\u003c\/a\u003e: The fastest of the third-generation KS3 springs, made from Kewlus Signature Metal Technology for crisp rebound performance and outstanding longevity.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/max-power-leather-cobra-bag-ball\"\u003e\u003cstrong\u003eGenuine Leather Prime Target Ball\u003c\/strong\u003e\u003c\/a\u003e: Premium leather target ball designed to provide an ideal balance of speed, power and durability.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/speedball-adapter\"\u003e\u003cstrong\u003eTarget Ball Adapter\u003c\/strong\u003e\u003c\/a\u003e: Extendable adapter designed to hold the target ball securely while maintaining top-section rigidity and fast rebound performance.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/clickbar\"\u003e\u003cstrong\u003e2 × Click Bars\u003c\/strong\u003e\u003c\/a\u003e: Lightweight, rust-free aluminium bars used for overall height adjustment and control of the bag’s range of movement.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/red-bar\"\u003e\u003cstrong\u003ePolymer Red Bar\u003c\/strong\u003e\u003c\/a\u003e: A lighter and shorter top bar for increasing the speed and intensity of the rebound.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/stainless-steel-mast\"\u003e\u003cstrong\u003eStainless Steel Mast\u003c\/strong\u003e\u003c\/a\u003e: Heavy-duty mast designed for exceptional strength, rigidity and long-term reliability.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/base-connector\"\u003e\u003cstrong\u003eBase Connector\u003c\/strong\u003e\u003c\/a\u003e: Rigid composite-fibre connector designed to secure the Stainless Steel Mast firmly to the OctaBase.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/donut-sandbags\"\u003e\u003cstrong\u003ePair of Donut Sandbags\u003c\/strong\u003e\u003c\/a\u003e: Purpose-designed sandbags that slide neatly onto the Stainless Steel Mast and weigh down the OctaBase.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/olympic-plate-sleeve\"\u003e\u003cstrong\u003eOlympic Weight Plate Sleeve\u003c\/strong\u003e\u003c\/a\u003e: Slides onto the Mast so that one or two of your own Olympic weight plates can be placed above the sandbags for increased rigidity and improved rebound performance.\u003c\/li\u003e\n\n      \u003cli\u003e\n\u003ca href=\"\/en-kr\/products\/octabase\"\u003e\u003cstrong\u003eOctaBase\u003c\/strong\u003e\u003c\/a\u003e: Handcrafted octagonal plywood base combining the natural appearance of wood with the strength and rigidity of multilayered ply. A set of 8 × 2-inch stainless steel screws is included.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eSetup \u0026amp; Performance Tips\u003c\/summary\u003e\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cp\u003e\u003cstrong\u003eHeight range:\u003c\/strong\u003e The O₃ is designed for users approximately 5′1″ to 6′0″ tall (155 cm to 183 cm). For the correct setup, the top of the ball should sit just above your chin.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eFill the sandbags completely:\u003c\/strong\u003e The cobra bag will perform best when the base is properly weighed down. Each Donut Sandbag holds approximately 45 lb (20 kg) of sand when fully filled. Line the inside of each sandbag with a heavy-duty bin liner to prevent sand from seeping through the stitched seams.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eLower the first sandbag carefully:\u003c\/strong\u003e When placing the first Donut Sandbag onto the OctaBase, lower it carefully to avoid dislodging the metal clasp on the Base Connector clamp.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eAdd an Olympic weight plate:\u003c\/strong\u003e The included Olympic Weight Plate Sleeve allows you to place one or two of your own Olympic weight plates above the sandbags. This adds weight while also increasing the rigidity of the Mast.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eRecommended setup:\u003c\/strong\u003e One fully filled Donut Sandbag with one 44 lb Olympic weight plate is a strong starting point. Add the second sandbag or an additional weight plate if you need greater stability.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eAdd mobility with castors:\u003c\/strong\u003e The OctaBase has a double-thickness rear panel designed to allow a pair of fixed castor wheels to be attached. This makes it easier to wheel the O₃ into position for training and move it out of the way afterwards.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eAlternative Setups\u003c\/summary\u003e\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cp\u003e\u003cstrong\u003eShort-form setup for children:\u003c\/strong\u003e The modular O₃ can be converted into a shorter cobra bag by removing the Mast and Click Bar, inserting the Striker (KS3) Spring directly into the Base Connector and tightening the steel clamp firmly around the Base Connector collar.\u003c\/p\u003e\n\n    \u003cp\u003eThis creates a compact version of the cobra bag at a comfortable height for younger users. As they grow, the Mast and Click Bar can be added gradually to increase the height.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eAdult supervision:\u003c\/strong\u003e An adult should always assemble the bag and supervise children during use.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eSuspended setup:\u003c\/strong\u003e The same short-form configuration can also be suspended upside down from a suitable overhead structure, such as a strong support beam. Use either a Click Bar or the shorter Polymer Red Bar to adjust the length.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eDesigned to Last\u003c\/h2\u003e\n\n\u003cp\u003eEvery part of the O₃ is modular and replaceable, extending the life of the system and reducing unnecessary waste. If one component eventually wears out, it can be replaced without discarding the entire cobra bag.\u003c\/p\u003e\n\n\u003cp\u003eThe handcrafted plywood OctaBase also avoids the bulky plastic water-filled base commonly used by other freestanding cobra bags, while providing the rigidity required for serious training.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":45574951665923,"sku":"O3KITSTD","price":670.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/O3-Striker.jpg?v=1780181912"},{"product_id":"stainless-steel-mast","title":"Stainless Steel Mast","description":"\u003cp\u003eThe Stainless Steel Mast is a modular component which, in conjunction with the \u003ca href=\"https:\/\/kewlus.com\/products\/clickbar\" title=\"Kewlus Click Bar\"\u003eClick Bar\u003c\/a\u003e (sold separately) and the \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-multi-base\" title=\"Base Connector\"\u003eBase Connector\u003c\/a\u003e (sold separately), makes up a height-adjustable base that can be used for the Kewlus Cobra Bag. The Stainless Steel version is identical to the alloy version, but is much, much stronger - ideal for intense daily use. This Mast has been used and tested extensively in a number of boxing gyms, without a single one breaking.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":45608764178691,"sku":"MASTSS45","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/SteelMast_cc5142bb-0772-456b-ac57-670f0f04f9e0.jpg?v=1749326029"},{"product_id":"striker-cobra-bag-spring","title":"The Striker (KS3s) Spring","description":"\u003cp\u003eThe Striker (KS3s) uses the same materials and technology as The Prime (KS3), but is a more resistant and therefore faster spring that is able to handle heavier loads without compromising on speed. Intended to be used as an alternative to the Prime, it sets the stage for training with heavier targets while maintaining incredible rebound speed. The third generation Kewlus Cobra Bag Springs (KS3) are the \u003cstrong\u003efirst of their kind in the world\u003c\/strong\u003e to be made from a \u003cstrong\u003especially formulated metal\u003c\/strong\u003e. Now tested and proven to perform and last for years in numerous boxing gyms around the globe, they are engineered to outperform and outlast every other type of spring. All Kewlus Springs, like all Kewlus components are modular, so switching from one to another is a breeze.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/Y8s52WcjOzY?si=s5Vjvg5a7hp3XjvU\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wBEcwedtlW8?si=DyXoHoQG2VfTJ6Lc\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSignature Metal Technology\u003c\/h2\u003e\n\u003cp\u003eThe KS3 springs are engineered from a unique formula metal that achieves the perfect balance between flexibility and springiness. This proprietary alloy delivers exceptional rebound performance and extreme longevity, ensuring consistent, high-quality training every time. Moreover, its remarkable adaptability allows you to easily adjust the spring -whether by bending or straightening (fully assembled) to achieve your desired angle or to correct any slight deviation. This means that even if the spring develops a minor bend over time, you can restore it to perfect alignment, maintaining peak performance under all conditions.\u003c\/p\u003e\n\u003cdiv style=\"background: #f5f5f5; border: 1px solid #dcdcdc; padding: 16px 18px; border-radius: 8px; color: #2b2b2b; font-size: 14px; line-height: 1.65; margin: 18px 0;\"\u003e\n\u003cstrong\u003eProduct Note\u003c\/strong\u003e\u003cbr\u003eVery small coating contact marks may be visible on the lighter red colour of this spring. These are a normal part of the finishing process, are purely cosmetic, and do not affect strength, durability, or performance.\u003c\/div\u003e\n\u003ch2\u003eVersatile Configuration Options\u003c\/h2\u003e\n\u003cp\u003eThe KS3 springs are designed with flexibility in mind. Their innovative connectors not only allow you to make minor height adjustments at either end, but also convert the cobra bag into a shorter version by plugging any of the KS3 springs directly into the Base Connector. This adaptability makes the O3 or KS3 Kewlus reflex punching bags accessible for young athletes as early as age five. Additionally, you can mount the short version upside-down to create the ultimate slip bag or install it horizontally on a wall - ideal for practicing uppercuts and hooks. These dynamic configuration options empower you to tailor your training environment to meet diverse needs and skill levels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note that trying to adapt the Kewlus Spring to another cobra bag of a different brand is unlikely to work\u003c\/strong\u003e due to various parameters differences, and I don't recommend it.\u003c\/p\u003e\n\u003ch2\u003eImportant: Setup \u0026amp; Maintenance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBefore using any KS3 Spring, please read the \u003ca title=\"KS3 Spring Maintenance\" href=\"https:\/\/kewlus.com\/blogs\/support\/ks3-cobra-bag-spring-maintenance\"\u003eKS3 Spring Maintenance Guide\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note that the connectors at the ends of the spring are screwed in and secured with a type of adhesive seal. If for any reason the adhesive seal is broken, please apply epoxy glue to the thread of the connector and screw it back in, leaving in for 24 hours to seal. Here's a link to the type of clear epoxy glue that is suitable for this: \u003ca href=\"https:\/\/amzn.to\/3B2tGVu\" title=\"Epoxy Glue on Amazon\"\u003e\u003cspan\u003ehttps:\/\/amzn.to\/3B2tGVu\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46488617419011,"sku":"KS3STRKR","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/StrikerSpring_a72ca851-9388-4000-8fed-ed2c3af35f31.jpg?v=1745461041"},{"product_id":"reacher-cobra-bag-spring","title":"The Reacher (KS3r) Spring","description":"\u003cp\u003eThe Reacher (KS3r) is designed to increase the reach and range of movement without compromising on speed. It has the same resistance as the Prime (KS3) but is longer by almost 2 inches, making it ideal for working on \u003cstrong\u003edefence, such as evasive movements, footwork and learning to gauge distance to target\u003c\/strong\u003e. Intended to be used as an alternative to the Prime, it allows you to focus on extending your reach while maintaining distance and correct defensive movement. The third generation Kewlus Cobra Bag Springs (KS3) are the \u003cstrong\u003efirst of their kind in the world\u003c\/strong\u003e to be made from a \u003cstrong\u003especially formulated metal\u003c\/strong\u003e. Now tested and proven to perform and last for years in numerous boxing gyms around the globe, they are engineered to outperform and outlast every other type of spring. All Kewlus Springs are modular, so switching from one to another is a breeze.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/ZdI5ks3E5Jo?si=CDFjk22cG9Ff24v8\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eSignature Metal Technology\u003c\/h2\u003e\n\u003cp\u003eThe KS3 springs are engineered from a unique formula metal that achieves the perfect balance between flexibility and springiness. This proprietary alloy delivers exceptional rebound performance and extreme longevity, ensuring consistent, high-quality training every time. Moreover, its remarkable adaptability allows you to easily adjust the spring -whether by bending or straightening (fully assembled) to achieve your desired angle or to correct any slight deviation. This means that even if the spring develops a minor bend over time, you can restore it to perfect alignment, maintaining peak performance under all conditions.\u003c\/p\u003e\n\u003ch2\u003eVersatile Configuration Options\u003c\/h2\u003e\n\u003cp\u003eThe KS3 springs are designed with flexibility in mind. Their innovative connectors not only allow you to make minor height adjustments at either end, but also convert the reflex punching bag into a shorter version by plugging any of the KS3 springs directly into the Base Connector. This adaptability makes the Kewlus accessible for young athletes as early as age five. Additionally, you can mount the short version of the bag upside-down to create the ultimate slip bag or install it horizontally on a wall - ideal for practicing uppercuts and hooks. These dynamic configuration options empower you to tailor your training environment to meet diverse needs and skill levels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note that trying to adapt the Kewlus Spring to another cobra bag of a different brand is unlikely to work\u003c\/strong\u003e due to various parameters and I don't recommended it.\u003c\/p\u003e\n\u003ch2\u003eImportant: Setup \u0026amp; Maintenance\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBefore using any KS3 Spring, please read the \u003ca title=\"KS3 Spring Maintenance\" href=\"https:\/\/kewlus.com\/blogs\/support\/ks3-cobra-bag-spring-maintenance\"\u003eKS3 Spring Maintenance Guide\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note that the connectors at the ends of the spring are screwed in and secured with a type of adhesive seal. If for any reason the adhesive seal is broken, please apply epoxy glue to the thread of the connector and screw it back in, leaving in for 24 hours to seal. Here's a link to the type of clear epoxy glue that is suitable for this: \u003ca href=\"https:\/\/amzn.to\/3B2tGVu\" title=\"Epoxy Glue on Amazon\"\u003e\u003cspan\u003ehttps:\/\/amzn.to\/3B2tGVu\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46488702583043,"sku":"KS3RCHER","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/TheReacherSpring.jpg?v=1740952006"},{"product_id":"power-target-ball","title":"Power Target","description":"\u003cp\u003eThe Power Target ball is crafted from genuine leather, just like the Prime Target, but it’s \u003cstrong\u003e25% heavier and larger\u003c\/strong\u003e. Designed to \u003cstrong\u003edevelop your punching power\u003c\/strong\u003e, it’s the perfect companion to any of the KS3 series of springs, in particular the Striker (KS3s) for developing strength and impact.\u003c\/p\u003e\n\u003cp\u003eAside from helping to develop powerful punches, this target is also great for those who are not used to the rhythmic cadence of the Kewlus. The larger size and slower rhythm makes it a little easier to get used to.\u003c\/p\u003e\n\u003cp\u003eWant to \u003cstrong\u003eswitch targets mid-session\u003c\/strong\u003e? Get the \u003ca href=\"https:\/\/kewlus.com\/products\/power-target-ball-adapter-combo\"\u003ePower Target + Adapter Combo\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca title=\"How To Change The Bladder\" href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46540425756931,"sku":"POWBAGLT","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PowerTargetBall_db179147-3acd-40c3-830b-2bf220b38018.jpg?v=1742070816"},{"product_id":"power-target-ball-adapter-combo","title":"Power Target \u0026 Adapter Combo","description":"\u003cp\u003eThe Power Target ball, made from genuine leather with the matching Kewlus Adapter will allow you to quickly switch targets in mid session. Switch to this combo mid session to focus on developing power in your punches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\" title=\"How To Change The Bladder\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46540632621315,"sku":"POWCOMB2","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PowerTargetBallAdapter.jpg?v=1742072276"},{"product_id":"speed-target-ball","title":"Speed Target","description":"\u003cp\u003eThe Speed Target ball is crafted from genuine leather, just like the Prime Target, but it’s \u003cstrong\u003e25% lighter and smaller\u003c\/strong\u003e. Designed to \u003cstrong\u003edevelop your reflexes and punching speed\u003c\/strong\u003e, it’s the perfect companion to any Kewlus spring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e Fully inflated, this target is 6 inches wide and 9 inches in height (not including the Adapter).\u003c\/p\u003e\n\u003cp\u003eThe Speed Target is more challenging due to both the increased speed and the smaller size that it presents. This target is ideal for more experienced fighters. Paired with the Reacher Spring (KS3r) it will challenge your punching speed, timing and reflexes, as well as your body movement when gauging the range to target or reacting to its faster rebound.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wBEcwedtlW8?si=DyXoHoQG2VfTJ6Lc\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eWant to \u003cstrong\u003eswitch targets mid-session\u003c\/strong\u003e? Get the \u003ca href=\"https:\/\/kewlus.com\/products\/speed-target-ball-adapter-combo\"\u003eSpeed Target + Adapter Combo\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca title=\"How To Change The Bladder\" href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46540722274563,"sku":"SPDBAGLT","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/SpeedTargetBall_f168c395-d6b8-4442-bcb6-8e7e964e011b.jpg?v=1742257610"},{"product_id":"speed-target-ball-adapter-combo","title":"Speed Target \u0026 Adapter Combo","description":"\u003cp\u003eThe Speed Target, made from genuine leather with the matching Kewlus Adapter will allow you to quickly switch targets in mid session. Switch to this combo mid session to focus on developing speed and body movement.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wBEcwedtlW8?si=DyXoHoQG2VfTJ6Lc\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e Fully inflated, this target is 6 inches wide and 9 inches in height (not including the Adapter).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca title=\"How To Change The Bladder\" href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46541027377411,"sku":"SPDCOMBO","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/SpeedTargetBallAdapter_c6acf057-0c22-48ca-9f6c-be3c2423ec21.jpg?v=1742257689"},{"product_id":"prime-pro-core-kit","title":"Prime (KS3) Pro Core Kit (No Base)","description":"\u003cp\u003e\n  The \u003cstrong\u003ePrime (KS3) Pro Core Kit\u003c\/strong\u003e combines the fast, responsive\n  rebound of the KS3 Prime Spring with the heavy-duty Stainless Steel Mast and\n  performance components designed for demanding long-term use. It delivers a\n  premium cobra bag setup without the added cost of a ready-made base, giving\n  you the option to make your own rigid DIY platform or securely mount the bag\n  to a suitable solid surface.\n\u003c\/p\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\n\u003cp\u003e\n  This kit is ideal for serious home training, boxing gyms and training\n  studios that want a more robust no-base setup. The Stainless Steel Mast is\n  designed for exceptional strength, rigidity and long-term reliability,\n  making it particularly suitable for frequent use and harder training\n  sessions.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Compared with the standard\n  \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-cobra-bag-ks3-core-kit\"\u003e\n    Prime (KS3) Core Kit\n  \u003c\/a\u003e,\n  the Pro Core Kit includes the heavy-duty Stainless Steel Mast, Polymer Red\n  Bar, Olympic Weight Plate Sleeve and stainless-steel mounting screws as\n  standard.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003ePlease note:\u003c\/strong\u003e This Core Kit does not include Platform\n  Paddles or a ready-made base. A solid DIY base or secure mounting surface is\n  required. The included Block Sandbags are designed to weigh down a DIY board\n  base and improve stability during training.\n\u003c\/p\u003e\n\n\u003ch2\u003eMake Your Own Solid DIY Base\u003c\/h2\u003e\n\n\u003cp\u003e\n  The recommended setup is a solid DIY base made by gluing multiple layers of\n  MDF board or particle board together, then securely mounting the Base\n  Connector onto the top. This creates an extremely rigid and affordable\n  platform that can be customised to suit your preferred height.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  The included Kewlus Block Sandbags can then be placed around the Stainless\n  Steel Mast to add weight and stability. You can also attach castor wheels to\n  the back of your DIY base, making it much easier to move the cobra bag\n  without removing the sandbags.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Follow my\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e\n    step-by-step DIY base guide\n  \u003c\/a\u003e\n  for the recommended materials, videos and latest design improvements.\n\u003c\/p\u003e\n\n\u003ch2\u003eSuitable for Small Children\u003c\/h2\u003e\n\n\u003cp\u003e\n  The Prime Pro Core Kit can also be converted into a shorter setup for small\n  children. Simply remove the Stainless Steel Mast and Click Bar, insert the\n  \u003cstrong\u003ePrime (KS3) Spring\u003c\/strong\u003e directly into the Base Connector and\n  tighten the steel clamp around the Base Connector collar to secure the\n  spring firmly in place.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  This creates a compact version of the cobra bag at a comfortable height for\n  younger users. As they grow, the Mast and Click Bar can be added gradually\n  to increase the height.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eAdult supervision:\u003c\/strong\u003e An adult should always assemble the bag\n  and supervise children during use.\n\u003c\/p\u003e\n\n\u003cdiv class=\"kit-important-note\"\u003e\n  \u003cstrong\u003eImportant Assembly Note:\u003c\/strong\u003e Please read the relevant sections\n  of the\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/kit-instructions\/o3-cobra-bag\"\u003e\n    O\u003csub\u003e3\u003c\/sub\u003e assembly instructions\n  \u003c\/a\u003e\n  and the\n  \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-make-baseboard-cobra-bag\"\u003e\n    DIY base guide\n  \u003c\/a\u003e\n  fully before use. The Base Connector must be secured firmly to your DIY base,\n  and the target ball and upper section must be assembled correctly to ensure\n  reliable performance and protect your warranty.\n\u003c\/div\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eWhat’s Included\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/cobra-bag-spring-ks3\"\u003e\n            Prime (KS3) Spring\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Third-generation spring made from Kewlus Signature Metal Technology\n        for outstanding rebound performance and longevity.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/max-power-leather-cobra-bag-ball\"\u003e\n            Genuine Leather Prime Target Ball\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Premium leather target ball designed to provide an ideal balance of\n        speed, power and durability.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/speedball-adapter\"\u003e\n            Target Ball Adapter\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Extendable adapter designed to hold the target ball securely while\n        maintaining top-section rigidity and fast rebound performance.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/red-bar\"\u003e\n            Polymer Red Bar\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, shorter top bar designed to increase the speed and\n        intensity of the rebound.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/clickbar\"\u003e\n            2 × Click Bars\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Lightweight, rust-free aluminium bars used for overall height\n        adjustment and control of the bag’s range of movement. The second\n        Click Bar can replace the Polymer Red Bar when a longer top section is\n        preferred.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/stainless-steel-mast\"\u003e\n            Stainless Steel Mast\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Heavy-duty mast designed for exceptional strength, rigidity and\n        long-term reliability during demanding use.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/base-connector\"\u003e\n            Base Connector\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Rigid composite-fibre connector designed to secure the Stainless Steel\n        Mast firmly to your DIY base. Includes the stainless-steel collar clamp\n        used to lock the Mast into place.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003e\n            Pair of Kewlus Block Sandbags\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Designed to add weight and stability when placed around the Mast on\n        your DIY base. They also provide a cushioned support for optional\n        Olympic weight plates.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e\n          \u003ca href=\"https:\/\/kewlus.com\/products\/olympic-plate-sleeve\"\u003e\n            Olympic Weight Plate Sleeve\n          \u003c\/a\u003e:\n        \u003c\/strong\u003e\n        Slides onto the Mast so that one or two of your own Olympic weight\n        plates can be placed above the sandbags for increased rigidity and\n        improved rebound performance.\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        \u003cstrong\u003e8 × Stainless-Steel Mounting Screws:\u003c\/strong\u003e\n        Two-inch screws designed for securing the Base Connector to a suitable\n        layered timber-board base.\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails class=\"kit-foldout\"\u003e\n  \u003csummary\u003eDIY Base, Setup \u0026amp; Performance Tips\u003c\/summary\u003e\n\n  \u003cdiv class=\"kit-foldout-content\"\u003e\n    \u003cp\u003e\n      For the best stability, make a DIY base that is at least 3 inches thick.\n      Use multiple layers of MDF board or particle board and secure the Base\n      Connector firmly to the top.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      The included 2-inch stainless-steel screws are suitable for an\n      appropriately constructed layered board base. Depending on the thickness\n      and construction of your chosen platform, longer screws or suitable\n      bolts may provide an even stronger mounting solution.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Fill the included Block Sandbags completely to the top. Wet sand is ideal\n      because it provides greater weight and stability. Use a heavy-duty\n      plastic bag as a liner inside each sandbag.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      The included Olympic Weight Plate Sleeve allows you to place one or two\n      of your own Olympic weight plates above the sandbags. This adds weight\n      while also increasing the rigidity of the Mast.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Ideally, the top of the target ball should sit just above chin height\n      when you are standing upright in front of the bag. The Mast and lower\n      Click Bar allow you to adjust the overall height. Taller users can also\n      glue additional layers onto the DIY base to add extra height.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      A taller DIY base allows you to use a shorter top section while\n      maintaining a comfortable target height. This can improve the speed and\n      responsiveness of the rebound.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Use the included Polymer Red Bar in the top section for a shorter,\n      lighter and faster setup. Replace it with the second Click Bar when you\n      want a longer range of movement and a slightly heavier top section.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      The same short-form configuration used for children can also be suspended\n      upside down from a suitable overhead structure, such as a strong support\n      beam. Use either a Click Bar or the shorter Polymer Red Bar to adjust the\n      length.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      For a more affordable premium no-base setup with a lightweight Alloy\n      Mast, consider the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/kewlus-cobra-bag-ks3-core-kit\"\u003e\n        Prime (KS3) Core Kit\n      \u003c\/a\u003e.\n      For the complete flagship system with a handcrafted OctaBase, consider\n      the\n      \u003ca href=\"https:\/\/kewlus.com\/products\/o3-cobra-bag-kit\"\u003e\n        O\u003csub\u003e3\u003c\/sub\u003e Kit\n      \u003c\/a\u003e.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Because this Core Kit does not rely on a large moulded plastic base, it\n      also offers a more sustainable long-term setup. Every major Kewlus\n      component can be replaced individually if it eventually wears out, so\n      your cobra bag can continue evolving with your training rather than\n      being discarded and replaced.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46604104892675,"sku":"CORPRKIT","price":495.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PrimeProCoreKit.jpg?v=1744422833"},{"product_id":"focus-target","title":"Focus Target","description":"\u003cp\u003eThe advantage of the Focus Target is that it provides \u003cstrong\u003eaudible feedback\u003c\/strong\u003e when struck perfectly in the central concave section with the correct angle of the glove. The sound is just like when you \u003cstrong\u003estrike a focus mitt\u003c\/strong\u003e - a \u003cstrong\u003eloud, distinct \"slap\"\u003c\/strong\u003e.  This audible feedback allows you to fine tune your punches.\u003c\/p\u003e\n\u003cp\u003eThe Focus Target is crafted from genuine leather, just like the Prime Target Ball, but it’s \u003cstrong\u003ealmost twice as tall\u003c\/strong\u003e. Designed to \u003cstrong\u003ehelp you improve your punching biomechanics\u003c\/strong\u003e, it’s the target you will love to have in your arsenal.\u003c\/p\u003e\n\u003cp\u003eWant to \u003cstrong\u003eswitch targets mid-session\u003c\/strong\u003e? Get the \u003ca href=\"https:\/\/kewlus.com\/products\/focus-target-adapter-combo\"\u003eFocus Target + Adapter Combo\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\" title=\"How To Change The Bladder\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46778710229251,"sku":"PPTBAGLT","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PowerPlusTarget_faa944a8-4cd2-4d66-a613-b33fd2f62cd1.jpg?v=1753264649"},{"product_id":"focus-target-adapter-combo","title":"Focus Target \u0026 Adapter Combo","description":"\u003cp\u003eThe advantage of the Focus Target is that it provides \u003cstrong\u003eaudible feedback\u003c\/strong\u003e when struck perfectly in the central concave section with the correct angle of the glove. The sound is just like when you \u003cstrong\u003estrike a focus mitt\u003c\/strong\u003e - a \u003cstrong\u003eloud, distinct \"slap\"\u003c\/strong\u003e.  This audible feedback allows you to fine tune your punches.\u003c\/p\u003e\n\u003cp\u003eThe Focus Target is crafted from genuine leather, just like the Prime Target Ball, but it’s \u003cstrong\u003ealmost twice as tall\u003c\/strong\u003e. Designed to \u003cstrong\u003ehelp you improve your punching biomechanics\u003c\/strong\u003e, it’s the target you will love to have in your arsenal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGet the combo of the Focus Target and Adapter for switching targets mid session.\u003c\/strong\u003e Designed to open new reflex training possibilities, it’s the target\/adapter combo you will love to have in your arsenal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003ePlease make sure that when installing the Adapter, the inner tongue that protrudes from the inside of the ball above the zip opening is positioned between the zip opening and the Adapter wall. The tongue protects the zip and prevents the zip opening from coming apart under pressure.\u003c\/p\u003e\n\u003cp\u003eThis video shows how to change the bladder when needed, as well as how to correctly install the Adapter: \u003ca title=\"How To Change The Bladder\" href=\"https:\/\/youtu.be\/7SHOB1FoV7Q\"\u003ehttps:\/\/youtu.be\/7SHOB1FoV7Q\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTIP:\u003c\/strong\u003e For regular intense training wrap a couple of rounds of duct tape around the bottom of the ball.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Please do not use a compressor to inflate the ball as it is likely to burst. Ideal pressure is just over 5 psi - firm, but not rock hard. \u003cmeta charset=\"utf-8\"\u003ePlease ensure the ball is inflated properly when training. Punching a poorly inflated ball can cause damage to the Adapter.\u003c\/span\u003e\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46778715341059,"sku":"PPTCOMBO","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/PowerPlusAdapter.jpg?v=1753264809"},{"product_id":"donut-sandbags","title":"Pair of Donut Sandbags","description":"\u003cp\u003eThe Donut Sandbags, or \"Donuts\" are designed to be mounted onto the mast offering a clean, compact appearance that complements round or octagonal bases like the OctaBase perfectly. In fact I designed these specifically for the OctaBase, but they can me used with any solid base, including your own DIY base. They neatly stack one on top the other and stay in place without needing long straps to go around the mast.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/-jrCPmnS-80?si=1HDmlT6btJLVYslf\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eEach Donut features a reinforced nylon strap stitched around its circumference, preventing bulging and enhancing structural integrity. The strap also incorporates four evenly spaced handles for easy lifting, positioning, and stacking from any angle — making setup and adjustment effortless.\u003c\/p\u003e\n\u003cp\u003eThe Donuts are ideal if you're going to use the \u003ca href=\"https:\/\/kewlus.com\/products\/olympic-plate-sleeve\"\u003eOlympic Sleeve\u003c\/a\u003e and place an Olympic weight plate over the top. You really only need one Donut to hold the weight plate, making for a very neat and compact appearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant: The Donuts are NOT suitable for use with Platform Paddles,\u003c\/strong\u003e which require a wider footprint. If you have the Platform Paddles as your base, please use the \u003ca href=\"https:\/\/kewlus.com\/products\/sand-bags\"\u003eBlock Sandbags\u003c\/a\u003e and fill them with wet sand for maximum stability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant note when mounting:\u003c\/strong\u003e Take care when mounting the first Donut onto the Mast and Base Connector. Check that the butterfly clamp on the collar of the Base Connector is not caught in the fabric of the Donut and \u003cmeta charset=\"utf-8\"\u003eif necessary free it with your hand from the top.\u003c\/p\u003e\n\u003cp\u003ePlease note that the sandbags do not come filled with sand. \u003cstrong\u003eTo keep the sand from seeping through cracks or accidentally spilling, line each sandbag with a large garbage bag before filling with sand.\u003c\/strong\u003e As you fill it, push the sand left and right around the centre into the back of the bag. Occasionally lift the front of the bag to allow more of the sand to flow into the back. Once filled, tie up the opening of the garbage bag and close the velcro flap, ensuring that the two velcro sides are in alignment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCaution:\u003c\/strong\u003e each sandbag when filled with dry sand weighs around 45 pounds (20kg). Take care of your back when lifting, keeping your back straight and using your legs.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46808452530435,"sku":"DONUBAGS","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/DonutSandbags_3163c4db-0a59-4e29-bb64-e9e617726c9e.jpg?v=1749326029"},{"product_id":"octabase","title":"OctaBase","description":"\u003cp\u003eI designed the OctaBase to be more than just a foundation for your cobra bag - I wanted it to be a timeless piece of art you’ll be proud to train on. Hand-crafted from sustainably grown, premium plywood and finished in a high-gloss cherry red, it’s a truly environmentally friendly alternative to the large, dull plastic bases you see everywhere. Unlike water-filled plastic bases that are prone to cracking and leaking, the OctaBase is made to last a lifetime.\u003c\/p\u003e\n\u003cp\u003eThe smart octagonal shape isn’t just for looks; it delivers unbeatable rigidity and longevity, far outperforming water-filled plastic bases that can’t be repaired once they crack. I’ve made it easy to \u003ca href=\"https:\/\/kewlus.com\/blogs\/diy\/how-to-add-castor-wheels\"\u003eadd castor wheels for mobility\u003c\/a\u003e, so that you can simply wheel the whole unit out of the way without needing to take off the sandbags. Aside from being structurally strong, the octagonal shape also has a compact footprint, measuring just 18 inches across, and allowing you plant your front foot closer to the bag for better stability and form. Having the platform raised 5 inches off the ground also adds that extra height to the overall height of your cobra bag. In gyms around the world, it’s proven its reliability and timeless style - bringing together function and art in a way you simply don’t see anymore.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHandy Tip:\u003c\/strong\u003e If you wish to travel and want to take your Kewlus with you, the OctaBase can actually double as a solid container when turned upside down, allowing you to neatly stash every component of your Kewlus kit inside. All you need to do when you get to your destination is assemble it and fill the sandbags at the local beach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly Note:\u003c\/strong\u003e The OctaBase comes pre-drilled with holes matching those on the Base Connector (sold separately). Use 5mm x 50mm screws for attaching the Connector - the pack of 8 stainless steel screws that are available as an add-on are a perfect fit.\u003c\/p\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46847349883139,"sku":"OCTABASE","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/OctaBasev92-800.jpg?v=1747942386"},{"product_id":"pounders-cobra-bag-training-gloves","title":"Pounders - Cobra Bag Training Gloves","description":"\u003csection id=\"pounders-intro\"\u003e\n\u003ch2\u003ePOUNDERS – World's First Modular Weighted Gloves for Power and Precision Training on the Cobra Bag\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTrain precision. Build power. Condition your fists.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePounders are the world’s first modular weighted training gloves designed specifically for the Cobra Bag — built to develop striking precision, speed and power.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wquq-1s5NJ4?si=I3_zdp5oZf2e3-83\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePounders are truly grab-and-go.\u003c\/strong\u003e Unlike traditional boxing gloves that require laces or Velcro straps, you simply grab the inner handles and start training instantly. Inside, removable soft knuckle pads cushion the impact of your punches while the silicone structure provides strength and shape. The pads don’t absorb sweat and can be quickly rinsed under the tap, making Pounders ideal for regular training or shared gym environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBeyond power, Pounders teach precision.\u003c\/strong\u003e Unlike the soft outer surface of normal boxing or MMA gloves, the hard rounded shell of the Pounders amplifies even small misalignments of your fist, altering the trajectory of the cobra bag target. This leads to immediate self-correction and effectively \u003cstrong\u003etrains your muscle memory to strike with the first two knuckles\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBeing modular, you can switch from heavyweight to lightweight.\u003c\/strong\u003e Each set includes lightweight composite fibre rods for a lighter training setup. With the weighted rods installed, the added mass increases muscle engagement and uses momentum to amplify the cobra bag’s swing range. Swap them for the lightweight rods to focus on speed, rhythm and precision.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWeight with stainless steel rods:\u003c\/strong\u003e 20 ounces (582g)\u003cbr\u003e\u003cstrong\u003eWeight with composite rods:\u003c\/strong\u003e 11 ounces (312g)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan be used with wraps.\u003c\/strong\u003e Pounders are designed to work without hand wraps, but for smaller hands wraps can be used to fill the internal space and create a more snug fit. The removable knuckle pads can also be taken out to create additional room when training with wraps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade from high grade silicone,\u003c\/strong\u003e the inner frame \u003cstrong\u003ewill not absorb sweat like normal boxing or MMA gloves\u003c\/strong\u003e. Even the removable knuckle pads are made from closed-cell foam and can be simply rinsed off under the tap. This makes them \u003cstrong\u003eperfect for boxing gyms where they might be shared between classes and users.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe modular design also allows you to remove the hard outer shell\u003c\/strong\u003e (remove the weights first) and use them on a heavy bag (with caution*) just like small gloves — but with the option to add weight when needed.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection id=\"pounders-benefits\"\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrain perfect fist alignment:\u003c\/strong\u003e Pounders train your muscle memory to correct fist alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild strength and endurance:\u003c\/strong\u003e Added mass increases engagement through shoulders, arms, and core while the compact shape preserves proper mechanics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplify cobra bag performance:\u003c\/strong\u003e Hard outer shell transfers energy efficiently, producing faster rebounds and a more dynamic workout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular \u0026amp; adaptable:\u003c\/strong\u003e Use them with either \u003cstrong\u003eheavy or light\u003c\/strong\u003e inner rods to suit your training needs. Use them with soft knuckle pads for comfort, or remove the pads to \u003cstrong\u003euse with wraps\u003c\/strong\u003e. Use them with the hard outer shell on a \u003cstrong\u003ecobra bag\u003c\/strong\u003e for extra bounce, or remove the shell to use them on a \u003cstrong\u003eheavy bag (with caution*)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and low profile:\u003c\/strong\u003e Low side profile allows hands to pass close together during fast combinations, ideal for cobra bag and shadow boxing drills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% waterproof \u0026amp; sweat proof:\u003c\/strong\u003e Easy to maintain and odour-free. Simply wipe down the inside and the pads with a towel after a hard session. They can even be rinsed out and will dry out in minutes as they don't absorb water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use Pounders\u003c\/h2\u003e\n\u003cp\u003ePounders have a firmer feel than traditional boxing or MMA gloves. The removable knuckle pads protect your hands, but they are intentionally designed to give a more direct connection to the target. If you are new to training this way, start slowly. In the first couple of weeks limit your Pounders sessions to just a few minutes at a time to allow your knuckles and fists to gradually condition. If your knuckles begin to feel sore, simply switch to regular boxing or MMA gloves and return to Pounders later. As your hands adapt you’ll be able to train longer and strike harder.\u003c\/p\u003e\n\u003cp\u003eBecause Pounders can also be used with weighted rods, they will fatigue your arms and shoulders faster than standard gloves. Keep early sessions short and controlled to avoid overstraining your shoulders while your body adapts to the added weight and momentum.\u003c\/p\u003e\n\u003ch2\u003eCleaning \u0026amp; Care\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRemovable knuckle pads make cleaning simple.\u003c\/strong\u003e After a hard session, just take the pads out and rinse them under the tap. Because they’re made from closed-cell material, they won’t absorb water and will dry quickly. When putting them back in, simply orient the \u003cstrong\u003eK\u003c\/strong\u003e on the pad the same way as the \u003cstrong\u003eK\u003c\/strong\u003e on the KEWLUS logo on the outer shell to ensure the correct fit and alignment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* Heavy Bag Use Caution:\u003c\/strong\u003e Pounders are designed primarily for the Kewlus Cobra Bag and for precision training. They don't have the same level of padding as traditional boxing gloves so please take care if using them on heavier, more dense targets or on a heavy bag. \u003cstrong\u003eIf using them on a traditional punching bag always remove the outer shell. \u003c\/strong\u003eTo remove the shell, remove the weights first, then squeeze the ends to take off the shell, and if needed, reinsert the weights before training. Begin gently, focusing on proper technique, and stop immediately if discomfort occurs.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"Kewlus","offers":[{"title":"Default Title","offer_id":46904881316099,"sku":"POUNDERS","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/files\/Pounders800.jpg?v=1773271550"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0499\/7814\/6983\/collections\/KS3CobraBagBaseOptions.jpg?v=1683666555","url":"https:\/\/kewlus.com\/en-kr\/collections\/all-products.oembed?page=2","provider":"Kewlus","version":"1.0","type":"link"}