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Quantity
1
Description
4.9
37 ratings
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1
If you're on the fence: get one!
After a poor experience with a competitor's product, I did my homework and landed on Kewlus. The value is unbeatable, and for those of us in the Netherlands, the shipping is fast and affordable. I am currently using the Prime (KS3) Kit with the red polymer bar and weight plate sleeve, and the performance is excellent. In fact, I’ve already placed an order for the Pounders. Reedy’s passion for his products was a deciding factor for me. His enthusiasm for his products is clear, and it shows in the quality. While the shipping box could be a bit sturdier (my spring arrived with a minor scratch), the equipment itself is top-tier. My son and I both love it. If you're on the fence: get one!
Dai · April 16, 2026
Very Happy - You Won't Regret It
I bought the KS3 without having tried a cobra bag before. I love training on double end bags, but did not have an easy way to install one in my home. I was deciding between the Vali Cobra, the Fierce Reflex and the KS2, and am incredibly happy with my purchase of the KS3 after about 10 workouts. The KS3 feels incredibly solid, like it will last for many years. The spring is great, the bag is great. Movement is dynamic and responsive, and contact with the bag feels satisfying. Its best feature for me is how easy the bag is to move. I need to move my bag between every workout, and the modular system is a dream. The bags filled with sand/water do a great job of holding the KS3 down, and are easy to move when it all needs to be stored. I could see how more weight could stabilize the KS3 better, but the sand/water bags do their job to give the mast excellent stability. The bags never get in the way of my footwork - have not thought about my feet being crowded once. If you are buying blind like me, you'll likely be very happy with the KS3. It does what it promises - a high end feeling piece of training gear. If you have to move your cobra bag frequently, the Kewlus system is the only one I'd want to use. Kewlus seems to care a lot about boxing training and customer satisfaction - that also feels like great energy to support in this weird boxing marketplace. A note for those purchasing - one 50 lbs bag of play sand only fills one Kewlus bag 80%. Buy 3 50lbs-ers at the hardware to fully fill up your Kewlus bags before your system arrives. Another note: the shape of the bag that arrived is different from the one advertised (the classic teardrop). The one that arrived has a two-tiered design that is excellent. It gives two distinct striking areas, and allows me to be more creative in my combinations. Was surprised when it inflated to that shape, but ultimately am very happy with it. Attaching an image so you can see.
Jacob · November 11, 2025
Top Product. Top Customer Service
Brilliant training tool. Great quality at a great price. Received it in the UK very quickly. The customer service, help and advice from Kewlus getting set up is absolutely second to none. Can’t recommend this company enough!
Simon · September 15, 2025




