Modular Training System

The Kewlus Cobra Bag is the world's first modular cobra bag designed with customisations, modifications, upgrades and add-ons in mind. This cobra bag is also DIY compatible so you can make your own components and add-ons, and save money.

It's not just a cobra bag - it's a dynamic and evolving modular training system for boxing and MMA.

Get The Full Kit!

Order the Kewlus Cobra Bag Core Kit while stocks last - now available with optional add-ons!

Make a Cobra Bag!

Save money with DIY (Do It Yourself)!

  • 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 
  • Make a Boxing Spar Bar!

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

    Full Instructions 
  • Make a PVC Pipe Cobra Bag!

    The Kewlus PVC Pipe Cobra bag is a Semi-DIY cobra bag, which is extremely easy to make, but makes for one hell of a fast action cobra bag!

    Full Instructions 
  • Make a 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 
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Cobra Bags Explained

The cobra bag is a type of reflex punching bag that incorporates a football-sized 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 that a boxer can have for developing a high level of hand-eye coordination and defensive skills. The interactive nature of the cobra bag makes it fun to train with. Even if you're not into boxing, but simply want a fun, interactive and challenging way to exercise your whole body, the cobra bag will give you that and more.

Learn More...
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