Very good product. It´s really work very well. I´m have difficults in beginning. But after do you practice, you learn and becomes easy and pleasure.
The visual with the leds make the product very elegant. Nothings. Only the instructions can be have more details. It´s a good excercises to prevent tennis elbow.
I usually make the excercises ... Read more
From personal experience, I will say: 1.This device effectively to train the muscles of the forearm. 2. In addition, work and other muscles of the hand. 3. Well trained wrist. 4. Obstacle for the occurrence of carpal tunnel. Deficiencies have not yet discovered, but I regularly use them only for 1 month. In my opinion, may soon deteriorate inside the ... Read more
very robust and quality design.
The light is a great addition.
Good for strengthening wrists and forearms.
It comes with a wrist strap in case you drop the ball which can happen when you are pushing your maximum speeds. doesn't have the speed counter I recommend buying the speed counter with it. Beware of the spinning sphere as it can easily cause burns ... Read more
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