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Kewlus Cobra Bag - KS2 Core Kit

Kewlus Cobra Bag - KS2 Core Kit

Regular price $198.00 USD
Regular price Sale price $198.00 USD
Sale Sold out
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The Kewlus Cobra Bag is the world's first modular cobra bag capable of customisationsadd-ons, upgrades and DIY integrations. The KS2 Core Kit includes the Original KS2 Spring, which has recently been superseded by the newer KS3 Spring. While the KS2 Core Kit is still available for sale, I urge you to consider the KS3 Kit with all the advantages of the new and improved spring.

What's Included in the KS2 Core Kit

The Cobra Bag Core Kit includes the following:

  • Genuine leather cobra ball, designed to fit perfectly onto the Kewlus Cobra Ball Adapter; Size OptionsSmall ball height: 8.6 inches; Standard ball height: 9 inches. The small size is only half an inch shorter and makes it a little more challenging a target to hit, while slightly increasing the speed.
  • Kewlus Cobra Ball Adapter, designed to be used with most speed balls but is the perfect match for the Kewlus Cobra Ball. One unique feature that's not found on other cobra bags is it allows the user to extend the length of the top section, thus increasing the reach of the cobra bag.
  • 2 x Kewlus Click Bars - one goes above the spring and one below. These are made from light, yet strong aluminium which will not rust, with dual push buttons at each end. They are a key part of the modular click-and-go system.
  • Kewlus Spring (KS2) is the 2nd generation Kewlus spring that fits onto the Click Bars and is also compatible with 3/4 inch pipes for DIY setups.
  • Kewlus Spring Caps (set of 2) - these are rubber caps designed to screw onto the ends of the spring. These are designed to lock each Click Bar in place, making it easy to replace the spring at any time.
  • Kewlus Click Mast - designed to simply click into the Multi Base for quick and easy removal and storage of the cobra bag. Made out of strong aluminium it will never rust. The bottom Click Bar simply slips into this mast and clicks in place at the desired height, giving you a height adjustable cobra bag suitable for both kids as young as 8 and adults as tall as 6 foot.
  • Kewlus Multi Base - super strong, minimalistic base made from composite fibre. It's designed to be used in multiple ways, such as with a baseboard, with Platform Paddles, with Suction Cup Handles or simply bolted to the floor. It comes with a stainless steel clamp for the collar to lock the mast in place for the ultimate rigidity.

The idea is to be able to swap as well as reutilise components as new add-ons are released. Check out my Youtube channel, Reedy Kewlus and stay tuned for more that is to come!

The height range of the cobra bag is roughly 4'5 (134 cm) - 5'4 (163 cm) from the floor to the top of the bag. This range can be extended for taller people through a customisation:

Optional Add-Ons:

Kewlus Platform Paddles - these come as a set of 4 composite fibre paddles that plug into the Multi Base to make a platform onto which you can place your sandbags or other weights. If you don't have the time to make a baseboard, then these are a great alternative, especially if combined with the Kewlus Sandbags.

Kewlus Sandbags - these come as a set of 2 sandbags specifically designed to have the right capacity, so that when fully filled with sand or gravel they will give you enough weight for a stable platform. Partially filled, they also allow you to place extra weights on top of the platform and help absorb vibrations.

Kewlus Suction Cup Handles - a pair of these handles can be used on painted concrete flooring, such as in a garage to hold down the Multi Base. These make for a very convenient way to set up your cobra bag without the need for heavy weights. They also allow you to get in close to the cobra bag due to their very small footprint compared to other types of bases. Please note that these suctions cups do not work on all surfaces, and even on smooth tiles are likely to dislodge with heavy punches.  I cannot guarantee that they will work on your floor.  Smoothly painted concrete flooring is best as I demonstrate in my video.

Shipping Info

Shipping is calculated at checkout with the following average shipping times.

USA & Canada

USA and Canadian orders will be shipped from Canada and takes just 2-3 days to most locations.

Limited Time Special Offer for USA customers: Orders to USA & Canada over $100 USD get free shipping.

Australia & NZ

Australian orders will be shipped from Queensland and takes just 2-3 days. NZ orders take 7-14 days.

The Rest of The World

All of the orders for the rest of the world are shipped from Canada and takes around 1 week to deliver.

Please note that you may need to pay import tax in some countries. Please check with your country's importation laws to find out how much tax would be charged.


You will receive an email with a tracking link as soon as your order is shipped from the warehouse. Please note that orders are not shipped on weekends or public holidays.

Pre-Ordering Products

Some products are available to pre-order and receive as soon as the are in stock. Please note that if you order these items together with other products, you whole order will not be shipped until every item in your order is available. All items in your order will be shipped together at the same time.

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Customer Reviews

Based on 22 reviews

Kewlus Cobra Bag - KS2 Core Kit

works very well - super happy with it

been eyeing a cobra bag for years but 'static' formulas didn't appeal to me. the question most solutions can't easily answer is 'what if i want to use a different bag' ?
or 'what if i want to use a different spring ?'

along come the kewlus kit. modular, use as-is or mix it up with some diy... ok this guy's onto something

the kit was well packed, the finish on the parts is very nice. everything is light but solid and feels well balanced. i screwed the base into wood floor. getting the adapter into the neck of the bag takes a little practice and patience. beyond that it assembles faster than the time it takes to get it all out of the box, and it all works exactly as expected. this is a clever product.

service is top notch as well. kewlus follows up on the buy, and i mentioned i had a bit of trouble with the bag. shazam! its dealt with on the spot


Overall happy with the purchase. Wish the action was faster, but overall happy.

Thank you. Very soon I will release an upgrade spring (KS3) for those who want faster speed. For now check out to increase speed.

Tomasz L.
very good

very good design

Roger C.
So much fun

I love this bag. It really trains my eye hand coordination. I also think the quality is very high as well. I definitely recommend.

What a great bag!

Reedy has created a very impressive, yet simple cobra bag (at a decent price). I ordered the PVC pipe kit and found it to be incredibly fast! I'm really enjoying it so far. Leather bag itself feels great and all the parts seem well made. Everything just clicks in, like Reedy says it does. Love it so much I ordered the spring to be able to switch between the spring and the PVC bag(s). Great product(s).
At one point, I had to email Reedy with a question and he quickly responded. Customer service, also five stars!