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Features: Using a Wrist Exercise Ball is one of the best and convenient system to extend muscle tissue power on your arm, wrist and hand A great activity mechanical device for musicians, typists and sports lovers, the Gyro Wrist Exercise Ball brings comfortable and non-impact relief to Carpal Tunnel Syndrome, Repetitive Strain injury, tendinitis, arthritis and all wrist related ailments Just using the 250Hz Wrist Balls for five to 7 minutes a day is satisfactory to make an enormous difference! Strengthening the muscular tissues in your wrists, hand and arm might help your perform at your best! The Gyro Wrist Exercise Ball is straightforward to hold round with you so you can use it in the office, on holiday and at the sports club as a warm up Specification: Color: blue / inexperienced / orange / crimson Material: ABS, Metal alloy Light Source: LED * 4 Battery: (built-in) Size: 7 * 7 * five Packing List: Fitness Gyro * 1 Rope * 1 Instructions * 1 How to use: 1, protecting the wrist ball with one hand, the hole a part of the upward, the other hand often is the head of the rope into the hole within the center of the ball 2, with the thumb of the hand maintaining the ball, flip the ball forward, the rope tightly wrapped around the middle of the ball in the center groove 3, when the rope around the center of the ball half of a circle, give up turning the ball middle Use one hand to carry the ball, the opposite hand to tug out the rope quickly and let the ball center rotate at the quickest velocity 4, straight open the part down, with the wrist a part of the ball, until you could feel the rate of the ball can proceed to accelerate Note: DO not drop the ball on demanding floor at any time,the heavy rotor will damage DO not touch the ball rotor when it's spinning at excessive speeds,it will burn