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Powerball Gyroscope
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A Powerball is a hand held exerciser to strengthen the arm and wrist. It works by generating a gyroscopic force that acts to push against your arm as your rotate the ball. As you spin faster, the ball glows brighter from an onboard generator that lights up blue LED lights. It makes a great present for anyone that want to prevent carpal tunnel syndrome, or exercise at their desk.
Learn more about the benefits of the powerball gyro.
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