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The gyro ball can be used as one exercise tool. Gyro ball is an extremely flexible exercise tool ,which helps people to build power in the arms, wrists and fingers. This unique function makes it of particular benefit to enthusiasts of many different types of sport such as basketball, Tennis, badminton , and all other activities demanding increased power in the arms, hands and wrists. It is great for musicians too! Drummers, guitarists, pianists (Almost of all musicians!) will benefit from the increased power and strengthen dexterity that an gyro ball will give them! However, as with all forms of exercise, you should never attempt to over exert yourself with this product and should consult a physician if in any doubt about your personal level of fitness. Matters need attention: Persons with heart disease is not allowed use this product. Gyro ball is suitable for people of different ages. However, it is recommended that children under 12 act it supervised by an adult. Don’t touch the rotor if it is spinning at high speeds - it will burn! DO NOT DROP the ball at any time - the heavy rotor will damage the inner surface of the sphere. Please keep the inner part of the ball clean and keep any form of lubricant or oil contamination off it. Slow speeds is for adjunctive therapy - high speeds for body building fun. Do not place it vertically when starting, otherwise it will cause invalid push.

Lotorr Wrist Strengthener Ball Forearm Exerciser Auto-Start Wrist Power Gyro Ball Ball Used to Strengthen Arms Fingers Wrist Bones and Muscles - BFNST9L3B