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KS3 Kewlus Core Kit

KS3 Kewlus Core Kit

Regular price ₩431,000 KRW
Regular price Sale price ₩431,000 KRW
Sale Sold Out
Taxes included.

The Kewlus Modular Cobra Bag is the world's first modular cobra bag capable of customisations, add-ons, upgrades and DIY integrations. The KS3 Kewlus Core Kit is perfect for those looking to make their own custom base (or screw it down to the floor) for optimum performance.

Kit Suitability

This kit is best suited for those who would like to get maximum performance from the cobra bag by making a DIY base or screwing the Base Connector to the floor.

ATTENTION: It is critical to assemble the ball & adapter correctly. Please ensure you read the instructions fully before use. Failure to assemble correctly may void your warranty.

What's Included:

Custom Base DIY:

The Core Kit does NOT include any base, giving you the option to make your own heavy duty, custom base. The best and easiest way to make a base is to simply glue together two or more 2ft x 2ft MDF boards. Usually one MDF board is not thick enough, so gluing together multiple boards provides the thickness needed for using long screws. I recommend a thickness of at least 1.5 inches, but with more boards glued together you will also gain an advantage of extra height as well as extra weight. Check out the following page with instructions and a video on how to make a suitable DIY base:

https://kewlus.com/blogs/diy/how-to-make-baseboard-cobra-bag

The recommended minimum weight for the base is 90 pounds (one pair of Sandbags), however adding a second pair of sandbags on top or an Olympic Sleeve with a weight plate will improve performance.

Height Range:

The height range of the cobra bag is roughly 4'8" (143 cm) to 5'7" (171 cm) from the floor to the top of the bag. This can be increased to suit taller fighters by making the base taller (gluing together more boards in the making of the base).

Convertible to Short Form:

The KS3 Cobra Bag can be converted to a shortened form, making the height range roughly 3'3" (100 cm) to 3'7" (110 cm). This form is ideal for smaller children or for mounting upside-down from the ceiling or horizontally on a wall.

Optional Add-Ons:

Product Features:

  • High Performance: Engineered for speed, power, and durability.
  • Modular Design: Customizable components for a tailored training experience.
  • Used by Champions: Trusted by world champion boxers for elite training.

For any queries or assistance, visit the Customer Support page. Additionally, Reedy's AI Assistant is available in the bottom right corner of the website to answer almost all questions. If he can't answer a question, you can contact me via the Contact page.

Shipping Info

USA & Canada

USA and Canadian orders will be shipped from Canada and takes just 2-3 days to most locations. Shipping is calculated at checkout.

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 3-5 days. NZ orders take 7-14 days. Shipping is calculated at checkout.

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. Shipping is calculated at checkout.

Please note that you may need to pay import tax in some countries outside of Canada, USA, Australia and New Zealand. Please check with your country's importation laws to find out how much tax would be charged.

Tracking

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 44 reviews
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J
Julian E.
So Incredibly Fast

The KS3 spring is just so incredible fast and has a really great rebound while still not missing out on reach, so it's perfect to work on my Philly shell.
The fact that the whole bag is modular makes it even better. I'm pretty tall, so I might replace the lower click mast with a galvanised pipe to use the shortest/fastest setting of the bag.

It's just a quality product and you can't anything better for this price, plus the customer service by Reedy is top notch.

C
Christian K.
GO FOR IT!

Don't hesitate and go for it.
Good quality.
Much fun to use.
Nice guy behind the product.

J
Jarrod A.
the BEST bang for your buck

I’ve wanted a reflex bag for years and was finally about to pull the trigger between a grodex or a fierce reflex bag.. Happened to stumble across Kewlus and saw that this new version dropped a few weeks ago. For half the price, this does EXACTLY what the more expensive ones do.. and the quality is THERE.

big respect to ya kewlus !

S
Simon G.
Best Christmas present

The KS3 core kit was a present from my missus!
Really impressed with the construction and ease of set up.

The spring is fast and it's a fun and challenging workout.
Very very happy.

Shipping was only 7 days and that was to the UK.
good price and worth every penny.

I'm a professional boxing coach and although this is for my own use at home, I'll definitely be taking it to the gym as well so my boxers can have a go!

e
essney j.
Better than advertised!

Easy to set up and definitely one of the best reflex bags on the market. I had my base drilled to my garage floor, so all I do is remove the pole when I want to park my car.

B
Brett M.
Worth every penny

I had been shopping around for a decent cobra bag and stumbled across the KS3. The quality is fantastic and the spring gives a higher end challenge than any other pieces of equipment in the same price range.