Basically a Powerball is a gyroscopic exercise tool or device used to exercise the human wrist as part of physical therapy or in order to build palm, forearm and finger strength.
Power balls are designed to help sports players, musicians and just about anybody develop and improve strength in the wrists, arms and grip. Power balls are often used to help participants of sport recover from injury and is widely used for rehabilitation and relief from carpal tunnel syndrome and RSI.
Power balls typically consists of a tennis ball-sized plastic or metal shell around a free-spinning mass, which can be started with a short rip string or by a snap of the thumb. Once the gyroscope inside is going fast enough, a person holding the device can accelerate the spinning mass to high revolution rates by moving the wrist in a circular motion generating massive rotational dynamics.
NSD Powerballs, Kernpower Powerballs & Gyrotwister Powerballs, and all powerball related accessories.
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