gozato auto-start wrist power gyro ball, wrist strengthener and forearm exerciser for stronger arm fingers wrist bones and muscle with led lights gozato <p><b>what is the wrist ball use for ?</b></p> <ul> <li>it is interesting and good for hands,wrist,shoulder, forearms,biceps and good as warm-up sport before you do climbing,golf,basketball etc</li> <li>if you use computer or play the piano for long time,you can play this ball every day for several minutes which make you feel hand won't be so pain as well.</li> <li>it is a very interesting toys to make your forearm sore and gets the blood going.</li> <li>for medial epicondylitis, prevent tendonitis and improve grip strength, relieve pain from tennis elbow, golfers elbow, and tendinitis, medium, intermediate.</li> <li>wrist ball hand grip strengthener ,hand grip exerciser,relieve stress ---anti stress anti anxiety for edc, adhd, children, teens, student and adults.</li> </ul> <p><b>how to start your new wrist ball ?</b></p> <ol> <li>toggle the ball along the double direction arrow to the max resistance,then release it,fast enough to have the ball turn the led on. </li> <li>turn your plam facing down, and slowly start to rotate, you will feel that it is scratching against the inside of the wrist ball. </li> <li>keep rotating with wrist then the ball will spin faster, develop a higher pitch sound. once you feel it spinning fast enough, stop your rotate, you could feel it oscillating right in your palm.</li> </ol> <p></p> <p></p> <p><b>warning attention</b></p> <p></p> <ul> <li>always wear a shatter-resistant rope before use.</li> <li>do not drop the ball on hard surface at any time,the heavy rotor will damage. </li> <li>do not touch the ball rotor when it is spinning at high speeds,it will burn. </li> <li>not suitable for children under 10 years old whose hand strength insufficient to use the product </li> <li>do not add any liquids, including water and oil</li> </ul>