About Kewlus: World's First Modular Boxing Training System

Kewlus is the world's first fully modular reflex training system for boxing and MMA, fast gaining a reputation as the best cobra bag in the world due to its quality, reliability performance and unlimited modular training options.

G'day! I'm Reedy Kewlus, inventor, DIYer & YouTuber dedicated to helping people all over the world create lower cost and better quality alternatives for training and exercising at home. Something most people don't know about me is that I hold a Degree in Engineering as well as a Masters Degree in Technology Management. This is just the beginning!

How Kewlus Began

This journey began in 2010 when I bought a heavy punching bag, but had no way to hang it and couldn't afford a commercial stand for it. So, I came up with a simple punching bag stand that cost me just a few dollars.

That was my first YouTube video and the start of a passion for creating and sharing ideas for training at home on a small budget. I continued to invent and share DIY ideas, such as a punching bag you could make from old tires, a cobra bag using toilet paper with a PVC pipe and a rotating spar bag for boxing using pool noodles.

I also reviewed a few commercial products and what I quickly realised is that much of my DIY gear was actually far superior to the commercial products that were being sold out there. This, plus losing my job at the outset of COVID hardened my resolve to finally turn my passion into a business.

Modular Boxing Training Gear

After trying out numerous DIY ideas I finally came up with the modular training equipment concept. One of my key goals was to create equipment that is easy to set up and just as easy to put away. Another goal was to ensure that everything is of the highest quality designed to last and components can easily be upgraded, swapped or added-on. This led to the creation of the world's first modular reflex punching bag or cobra bag as it's also known.

From DIY to State of the Art

Because of my love for DIY, I wanted to also provide the DIY alternatives. If you're able to glue some MDF boards together, then you can save a ton of  money by getting a "Core" kit. Furthermore, if you're not afraid to DIY the whole thing using galvanised and PVC pipes, then all you might need is a spring such as the original Classic (KS2) Spring which you can purchase for just a few dollars. Then just follow my instructions and videos to make it!

Whats even better is that you can swap out any DIY parts with my modular parts at any time - they are all compatible! This means that you can start with DIY and eventually upgrade to a state of the art Kewlus setup like that used by professional fighters.

Caring for the Environment through Sustainable Design

All Kewlus gear is built around a modular system — every part is designed to be replaceable. If something breaks or wears out, you simply swap out the component instead of tossing the entire unit. This approach drastically reduces waste and extends the life of your gear, making it a smarter, more sustainable way to train.

The O3 Kit takes this even further with the OctaBase — a solid, octagonal base made entirely from high-strength plywood. Unlike the bulky plastic bases used by other cobra bags (which eventually crack and end up as microplastic pollution), the OctaBase is built to last and far better for the environment. It’s one of the many ways I’m making sure Kewlus gear performs at the highest level without adding to the planet’s problems.

Train Like a Champion

The Kewlus is starting to gain a reputation as being the best in the world for a number of reasons: it's modular so you can switch components to change the dynamics, parts are of the highest quality, components like the spring outlast all others, and there are more adjustment points than any other cobra bag. World champion boxers are now embracing the Kewlus, particularly with the newly released O3 kit, the sturdy OctaBase and the new range of modular springs like the Prime (KS3), the Pure Speed (KS3s) and the Shadow (KS3l). These professional athletes and their coaches choose Kewlus gear because of the high quality, unbeatable performance and the modular versatility. I designed it so that you can start at entry level, possibly even DIY and as you develop your skills you can upgrade to higher performance levels and eventually train like a champion with many different training options. With Kewlus there is no limit to the variety of options and unique combinations of modules - you train how you want.

Free Kewlus Fundamentals Training Program

The Kewlus has turned out to be an amazing modular training system that will not only elevate your boxing skills, but will help you maintain physical and mental health. I've been practicing fairly regularly on my Kewlus, often to test out new upgrades and prototype components. More recently I've been occasioned to be supervised by a professional boxing coach at a local boxing gym, which I highly recommend to anyone who is starting to learn boxing. Inspired by my own progress I have put together a basic program to get you learning the rhythm of the Kewlus: the Kewlus Training Fundamentals program - it's free and I hope it helps you get started and stay on track with the Kewlus.