It vibrates more than another gyro ball from the same seller that I have, I can't get it to work as well and I can't repair it.
It's quite good, the price is great since 15 years ago they were worth 15 times more.
Great thing to develop grip.
The product matches the description, delivery before the deadline.
To learn how to use it, you need to practice a little; it fulfills its function.
Just like in the picture, works well, but without digital counting lcd
This item was so good, it has helped my hand so much.i was disabled from the right side and this has really helped
Not doing the lights it supposed to do
The usual power ball as always, a very good purchase.
Entertaining. Maybe the seller should upload a video because the text instructions are bad.
It comes without a cord, and the box is a bit damaged. But okay, it works for now.
Functions
These things take some skill to learn to use, but they are extremely effective in strengthening wrists and forearms.