Jayflex Hyperbell Dumbbell Converter - Convert Dumbbells to Barbell Set and Kettlebell for Home Fitness - Adjustable & Up to 200 lb Capacity Weight Barbell for Weight Lifting

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?

These are sturdy and well built. I really like the adapter that comes with it which allows me to use various types of dumbbells and the safety locking mechanism that keeps the weights locked tight. I bought a pair and really have added variety to my home workout sesssions. I recommend this product to anyone.

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.

I really like how you can tilt them 90 degrees to have the dumbbells in a parallel or perpendicular position to the handle. Makes for a lot more versatility. The handles are pretty large, which I like as it gives a lot of gripping room. I'm actually using them on MX-55 adjustable dumbbells, so now with a set of handles I have two sets of kettlebells from 10-55 lbs. For less than $80, how can you beat that? Have used only a few times, but so far impressed with the durability. The packaging was professional as well, doesn't affect the functionality but nice touch.

I was looking for a way to "create" a heavy KB in my gym or any gym I went into. This handle can swivel in positioning whether you want to have a DB inside be perpendicular or against the handle orientation. Immediately upon receiving the handle I brought it to the gym next day and attached a 100lb to it for KB swings. Though the motion does feel slightly different and a little shaky compared to a solid KB, the handle absolutely did the job I was looking for and will continue to use going forward. I would assume the thicker the DB handle the tighter the hold and the more stable it will feel in hand.

The product works fine but it’s bulky and the handle is quite huge. If you are serious about kettle bell training, buying actual kettlebells would be better. If you are just using them to do some occasional kettlebell swings and don’t want to invest in a bell just for that purpose, then this is ok.

You know when a product strikes you as well thought out and designed. This is one of those......collar and sleeve made of plastic, but if you treat it properly, you should really have no issue....unless you drop your weights, or throw them around. Very easy to fit on my rubber coated dumbells, very secure ......completes my workout needs without having to buy a whole set of kettlebells. Well done!!

Great add on for your home workouts! Easy to hid away when you’re not using them and works just as great as a kettlebell!

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.

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.