The Dyna-Flex Powerball Pro is capable of reaching speeds in excess of 13,000 rpm, entirely powered by your own hand. With regular use, the Powerball Pro can help to increase grip strength and range of motion, whilst strengthening arms, elbows and shoulders. It is also proven to help relieve Carpal Tunnel, arthritis and many other repetitive stress injuries. It works by using the power in your arm and hand to spin the gyro, which produces resistant torque of up to 30lbs to create a work-out.
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The Dyna Flex Powerball gyroscope wrist exerciser helps you play for longer and with less fatigue and strengthen your grip, tone your wrists and even rehabilitate certain conditions, such as Carpal Tunnel Syndrome. It recently made the cover of Time magazine as one of their top 10 digital devices of the year. It features a balance rotor and removable top cap, which allow insertion of the optional digital speed meter.