Powerball strengthens and improves coordination of fingers, hands, wrists, arms and shoulders.
Great for sports (it is endorsed by the PGA) as well as for prevention and treatment of ailments such as carpal tunnel syndrome.
With the push of a button, the new Powerdock automatically activates the gyroscopic Powerball.
Blue LED lights glow as speed builds to 13,000 rpm and resistance grows to 35 lbs. of gyroscopic force.

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