





Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.
⚡ Elevate your home workouts—one grip, endless gains!
The Jayflex Hyperbell Dumbbell Converter is a versatile fitness accessory that transforms your existing dumbbells into kettlebells or barbells with an adjustable, rotating grip. Supporting up to 200 lbs, it offers ergonomic handle options and a compact, durable design ideal for home gyms and on-the-go training.






| ASIN | B0B5JXJWPV |
| Best Sellers Rank | #14,633 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #67 in Strength Training Kettlebells |
| Brand | Jayflex |
| Brand Name | Jayflex |
| Color | Kettlebell |
| Customer Reviews | 4.3 out of 5 stars 427 Reviews |
| Handle Diameter | 1.5 inches |
| Item Dimensions L x W | 10"L x 4"W |
| Item Weight | 1.5 pounds |
| Manufacturer | Jayflex Fitness |
| Material | Polycarbonate |
| Model Number | KB001 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Adjustable,Compact,Portable |
| Part Number | KB001 |
| Product Dimensions | 10"L x 4"W |
| Special Feature | Adjustable,Compact,Portable |
| Style | Adjustable |
| Target Use Body Part | Back |
| UPC | 767531509777 |
| Unit Count | 1 Count |
A**Y
Best kettlebell adapter in my opinion
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.
T**R
Versatile, Easy to Use, and Saves Space
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?
K**O
Grip
The hyper Ball converter serves its purpose, but it wasn’t for me. I personally prefer the heavier feel of a kettlebell. The handle is smooth, and I think it should be somewhat textured to provide a grip.
S**M
It’s good for the job
THIS THING IS HUGE AF! But it’s nice and great quality, recommend but not if you have tiny hands lol
A**R
HONEST FITNESS REVIEW
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.
J**C
It’s ok
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.
J**D
Good Stuff!
GREAT product. Fit any dumbbell I have. Changes out quickly. Would recommend
C**A
Infuriating and disappointed.
Ugh. I was really hoping that this would be a solid addition for my free weights for when I work out at home. Not the case. It's all plastic. And not a sturdy plastic, it honestly feels like one slip of the finger and it'll slip out of your grip and shatter onto the floor. Or at least crack, then splinter. The handle doesn't even have a solid grip TO it, no textured handle, not even foam padding on it. Hell, the handle isn't even solid - it's hollow. I don't even know if it'll handle my 10lb weights. It's cheap. Cheaply made, cheaply put together, all over just a crappy product. I got the bar as well... and I'm honestly not looking forward to even opening that box. I'll be returning it. It would be awesome if companies like this didn't crap out on quality. I won't be using this company again, and my recommendation is that you, kind reader, steer clear as well.
B**T
Snapped in 18 months
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.
A**E
Looks pretty flimsy for the price.
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.
Trustpilot
2 months ago
1 month ago