Durable bar for wrist and general hand exercise. If you have neuritis or tendinitis it is ideal, it relieves and soothes. It strengthens the muscles around the wrist and gives you a stronger grip.
Nice tool to include in my workout routine when I do arms/biceps

it needs some time to get used to how to rotate it properly, once it reaches rotation speed it is a super nice exercise for your forearm and hands

Compared to the original, it is difficult to start, but it works well once you get used to it a bit.

Purchased in April, by early August it stopped working properly. Initially, they told me that it would be repaired/replaced, but it eventually resulted in a refund. Prefer something else with greater durability to have your peace of mind.

Very good product and its construction is very decent. I didn't know what to expect since it's the first time I see something like this for exercising by hand, but I can confidently say that it does what it promises and more. Highly recommended.

I had never used this type of exercise ball before, I can say that it does what it promises as long as you don't overdo it because I didn't hold it well during slow movements and it caused a blister on my little finger due to friction. The little bumps are indeed a bit annoying, but it's something you get used to. I will come back in a while to see if it will have the expected results in training my hand.

The product is very good, it does exactly what it promises. It seems to be of good quality and durability, but time will tell better. I will come back for an update when and if it breaks. 4 stars for the LEDs that didn't impress me, but they don't bother me either and they work functionally.

It does what it needs to. If you can tolerate the unnatural feeling of straining unfamiliar muscles, you use it often...

Excellent, starts easily, the lights are impressive, works well. Compared to more expensive powerballs, it starts much easier, but maybe it doesn't reach the maximum speed of the others (indifferent). Recommended.

Despite the fact that it has a much lower price than the original company that produces them, the product seems excellent to me. Time will tell for durability over time.

I have it for about 15 days in the office. I didn't expect to be so satisfied. I highly recommend it

Convenient start with tuning. Good build quality. It has lights whose brightness increases according to the rpm. 4 stars because the lights become tiring after some time

Very good product... in comparison to the powerball, I see it as more qualitative in terms of construction and very convenient the automatic ball starting system!!! I hope it lasts... I will come back!!