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World's First & Only!

The Kewlus cobra bag is the world's first & only modular freestanding reflex punching bag. No other cobra bag bag has such a high level of component quality and reliability. No other cobra bag offers you the ability to switch components in order to match your training goals. Now you can instantly switch from working on speed and reflexes using the Striker Spring and the Speed Target to working body movement using the Reacher Spring and the Prime Target to developing raw power in your punches using the Prime Spring and the Power Target. Unlike other cobra bags, the Kewlus system offers not just one, but unlimited training options.

Loved by Champions

Appreciated by boxing champions like Tim Tszyu, the McKenna brothers, the Moloney brothers, and embraced by boxing coaches worldwide, the Kewlus is revolutionising reflex training and is fast becoming the go-to training tool for the top athletes.

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Try Out the O₃ at Your Local Gym!

I want everyone to have the opportunity to train with my most advanced Kewlus, the O₃. To achieve this I created the Gym Rebate & Subsidy Program, making it super affordable for boxing clubs and gyms to own one or more O₃ reflex training systems.

  • Sanctum Forge Boxing Gym (Gold Coast)

    Try out the O₃ kit at the Sanctum Forge Boxing Gym on the Gold Coast (QLD) and get a great deal from Paul Briggs.

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  • Eastside Boxing Gym (Brisbane)

    Visit the famous Eastside Boxing Gym in Brisbane (QLD) to see the O₃ in action. Talk to Simon Orton to get an amazing deal and save on shipping.

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New & Coming

The O

It's finally here! Sporting the powerful Prime (KS3) Spring, heavy duty Stainless Steel Mast and the beautifully crafted OctaBase, the O₃ is the ultimate Kewlus Reflex Training Machine designed and engineered for elite fighters and boxing gyms.

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The Striker (KS3s)

The Striker (KS3s) 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 (KS3), it sets the stage for training with heavier targets while maintaining incredible rebound speed.

Coming Soon

The Reacher (KS3r)

The Reacher (KS3r) is designed to increase the reach and range of movement without compromising on speed. It's ideal for working on defence, such as evasive movements, footwork and learning to gauge distance to target.

Coming Soon

Power Target

The Power Target Ball is crafted from genuine leather, just like the Prime Target Ball, but it’s 25% heavier and slightly larger. Designed to boost your punching power, it’s the perfect companion to the Striker Spring for developing strength and impact.

Coming Soon

Speed Target

The Speed Target Ball is crafted from genuine leather, just like the Prime Target Ball, but it’s 25% lighter and smaller, allowing it to move with exceptional speed. Designed to challenge your punching speed and reflexes, this target delivers a swift, responsive training experience when paired with any Kewlus spring.

Coming Soon

XL Base Connector

The XL Base Connector is designed to increase the overall height and rigidity of your Kewlus. It incorporates an Olympic Sleeve in the top half, allowing you to place one or more Olympic weight plates on top of the sandbags to further enhance rigidity and performance of your Kewlus.

Coming Soon

Choose Your Kit:

Visit the Kits page for help with choosing the kit that's best for you.

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  • Cobra Bag Customisation & Optimisation Instructions and Videos

    Get the most from your Kewlus Cobra Bag by setting it up with my tips. Included are details on increasing speed, height and improving performance.

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  • Make the Baseboard that's Right for You

    The most common and reliable base solution is to make a baseboard. I cover all the options here, from a basic light weight baseboard to a thick "Stubby" with a double-deck setup.

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  • Add Wheels To Your Kewlus

    Adding wheels to your Kewlus Reflex Punching Bag has got to be one of the best mods for the O3 kits as well as the Core kits with a thick DIY base.

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  • Advanced Cobra Bag Setup

    Get the maximum performance and add mobility to your KS3 Cobra Bag with this advanced base setup.

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  • Make a DIY Cobra Bag!

    Make your own fast and powerful cobra bag that is better than many of the commercial cobra bags at just the fraction of the cost!

    Full Instructions 
  • How To Make a $10 PVC Kewlus

    The original PVC and Pool Noodle Kewlus, which you can make from just $10!

    Full Instructions 
  • Make a Cobra Bag Baseboard!

    If you have ordered the Kewlus Cobra Bag kit that includes the Multi Base, the best way to set it up is to make a baseboard for it.

    Full Instructions 
  • Make a Boxing Spar Bar!

    Make this smooth-spinning spar bar for learning to slip punches and improve your defensive skills.

    Full Instructions 
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Kewlus on TV!

I had the incredible opportunity to present Kewlus on Shark Tank Australia. The sharks loved the Kewlus, but were too focused on the immediate revenue to see the genius of the modular concept and missed out on the opportunity.

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What's a Cobra Bag?

Cobra bag is a name synonymous with the reflex punching bag. This is a type of free-standing punching bag that incorporates a punching target (often in a shape of a ball) on top of a rod or pole that is able to flex back and forth. The cobra bag is one of the best training tools for boxing training and is often compared to the floor-to-ceiling bag. It's ideal for developing a high level of hand-eye coordination and defensive boxing skills. The interactive nature of the cobra bag makes it fun to train with.

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