Jayflex Hyperbell Rotating Kettlebell Grip for Dumbbells - Adjustable Weight Dumbbell Grips for Work from Home Fitness - 100 lb Capacity Converter for Kettlebells and Home Workouts

This is great when it works. But gets quite flimsy for weights exceeding 20kg. I’ve had this for 18 months, and the poor thing died after just doing KB swings with a 20kg weight. I can’t seem to find any information on a warranty. I think I’ll be looking for a more solid solution in future.

This is such a great product idea for anyone who wants the versatility of different workouts without buying a bunch of separate equipment. This dumbbell converter is easy to put together and instantly turns dumbbells into a kettlebell. It feels solid during use and works exactly how a kettlebell should. Perfect for home workouts, especially if you are short on space but still want a wide range of exercises. Honestly, what more could you ask for?

Looks incredibly flimsy. They say it can hold up to 100lbs each but I won't try to swing them with such weight attached to it.

PROS: I got this to use on older Nautilus 552 adjustable dumbbells. The product is a neat concept. I like that the handle can rotate so you can use the handle in both directions. I avoided ordering another popular handle attachment b/c the handle was always parallel with the dumbbell and I wanted it perpendicular with the dumbbell for kettlebell swings, etc like a real kettlebell is. I like that you can attach up to 100lb dumbbell. I recently purchased a single used Bowflex 1090 adjustable dumbbell just for this handle and it fits on it too, however it is even a tighter fit. The Jayflex doesn't slip or slide like I thought it might before I bought it. If your dumbbell handles are skinny, it will slide around. CONS: I would only recommend this product if you're going to leave it on the dumbbell! Don't be expecting to remove this in between sets to put on another dumbbell. It takes a strong grip to press the halves together and get the top screwed on. And it took 2 of us to get it on the new Bowflex 1090 dumbbell. But at least it's tight and won't slip around. Not only is it a tight fit, but getting the handle and screw to line up is a challenge. It's essentially 3 pieces that you're trying to manueuver. I highly recommend putting this handle on an adjustable dumbbell and leaving it on!!! My handle will be staying on the single 1090 so that our pair of 552's are freed up from always having to remove the handle when someone else wants to use the weights. Overall, it's a neat concept, but it can be difficult and time consuming to swap out for another weight. I only recommend buying this if you will leave it on a dumbbell or don't might the frustration of swapping it out.

This did not fit my 2nd generation power block weights (20 years old). This handle appears well designed and the materials look good. I assume this will last for people, it just doesn't fit my weights due to the close binding posts around the lifting handle area.