Rock Climbing Solid Training Cannonball Bomb Power Pull Up Ball Hold Grips for Straps for Finger, Forearm, Biceps, Back Muscles

I initially attached these to a horizontal bar using the included straps, per the instructions. When I weighted them they held, but it sounded like the Velcro was slowly coming undone and I didn't feel very safe-- especially after reading about mishaps experienced by other buyers.I ended up suspending them from a stair using a couple of retired climbing slings and carabiners. This feels much more secure and gives me the ability to use them for a different exercise. I actually bought these to work on grip strength, not pullups, so I "palm" each ball from the bottom rather than gripping it near the hanger at the top. I'm not strong enough to support my body weight with this grip yet, so I detached one ball and do reps with a separate resistance machine for now. The carabiners make it easy to switch things around.For my hands and this exercise the 3.5" balls are the perfect size. I wear a size medium glove. Both balls seem spherical.I'm happy with my purchase and would buy these again, but I removed one star for the straps and because the balls had a slightly strange smell when I opened the package. I don't notice it when I'm working out.

I purchased the 4" round grips months ago and they are fantastic so I recently purchased the 3" ones as well. I and a friend have been using them for ninja warrior type work outs and they are top notch for the price. I have an expensive Atomic holds bannana grip and these grips are good in comparison.The straps are the only problem. If you are just going to hang these and do pull ups, they work just fine. However, if you are putting them up and taking them down often or you are swinging/releasing and catching hold of these in the air, sometimes the velcro comes loose. Both I (190 pounds) and friend (150 pounds) have ended up pulling one off these off the bar (even after having tested the velcro set up to make sure it was tight. You can easily buy a strap with D rings and a clip that holds hundreds of pounds, and your in business.The hold is fantastic and the velcro strap is good, but not for my intended purpose. I would give the combined product a 4.5 if you could give half stars, but the grips themselves are great.

Exactly what I was looking for to work on grip strength - little slippery at first but with little bit of chalk (or gloves) perfect

These work as advertised. I would recommend for people to get a larger size however. I typically wear large gloves and these feel almost too small to really exercise my grip

Directions weren't great, but I just kept trying, and testing it each time after. Make sure you test it(!) before you throw your whole big self on these little balls or you're gonna put a hole in the ground with your backside.Also would be nice if there was something to "warm up" or get stronger BEFORE using these. I normally do pull ups pretty easily, but this completely wrecked my forearms. I think I did a 1/4 to 1/3 of what I normally do.

But does work on fingers & grips and elbows.

1. I like everything about this product.2.(no dislikes).3.Highly recommend this product for fitness enthusiast.

I bought these when Covid struck. I looped them around rings I installed for the same purpose, and they have been great. Not much to say, as they don't have moving parts, but I guess I should mention how heavy they are. Solid. Easy to put together and fix. Tough workout. I am trying to not lose too much before climbing gyms reopen.I did have an issue with one of them, minor, but the company was quick to respond and I had a replacement before I missed a single workout. Well worth the money and they stand behind their product.

both spheres are not equal, one is perfect and the other is misshapen you can feel the uneveness and ridges like the mold it was made of was warped, but in the end the are a cheapr and decent product so it does matter too much, I'm average build and bought the 3.5" and it seems a good fit for me.

Just what I wanted and needed. Quality product, well made. Only downside is if you want multiple uses for this, its a little time consuming to take it off and on with the velcro attachment.

My ninja obstacle obsession

Perfect addition to our pull-up bar! Really works other muscles, pull ups and chin ups don’t.

This is a fantastic product! Showed up on time. It really focuses forearm muscles and targets your biceps, triceps, and you lats extremely well. I am very happy with the product.