Powerball Gyroscope
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This gyroscopic exercise tool is a device used to exercise the wrist as part of physical therapy or in order to build hand and finger strength - ideal for racket sports.
The device consists of a tennis ball-sized plastic 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.
Product Ref: 771207
