maimaiThe faster it spins, the stronger you get! Powerball gets going easily with the flick of a thumb or a quick pull of its starter cord. Rotate your wrist to make the balanced rotor spin faster and faster. Blue LEDs glow brighter as the dynamic powerhouse gains speed. As maximum rpm approach 13,000, 35 lbs. of gyroscopic force creates progressive resistance that improves coordination while building strength in your fingers, hand, wrist, arm and shoulder. Measures 2 3/4" across. 90-day warrantyPowerball gets going easily with the flick of a thumb or a quick pull of its starter cord.Rotate your wrist to make the balanced rotor spin faster and faster, up to 13,000 rpm.Blue LEDs glow brighter as the dynamic powerhouse gains speed.Its 35 lbs. of gyroscopic force creates progressive resistance.Improves coordination while building strength in your fingers, hand, wrist, arm and shoulder.
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Pictured above: Dynaflex Powerball
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