Dyna-Flex Pro Plus PowerBall

Dyna-Flex Pro Plus PowerBall. Includes 3 strings. Does NOT have wrist strap--not needed to use. Comes with instruction sheet. This Gyro exerciser offers premium strengthening with a “spin”. It features a keenly balanced gyroscopic rotor inside a compact sphere of polycarbonate plastic. It uses wrist, forearm, and hand strength, bicep and tricep strength for a stronger grip. Give the Gyro a quick pull to start it moving. Rotate your hand so that it begins to race and hum. Then hang on – if you can! The Gyro will try to leap from your hand as it builds. Resisting this pull gives your wrists, grip, and arm quite a workout. Changing the rotational speed varies the resistance. Improves coordination while building strength. Is useful for sports training, giving users an edge in tennis, gold, bowling and other sports requiring a strong grip and control. is safe enough to be used in therapy and rehabilitation. It has no motor or batteries, and it’s outer ball doesn’t move (just the spinning rotor within). Fits in the palm of your hand. The continuous tilting action improves your grip strength, dexterity and coordination. Increasing strength and wrist motion helps prevent and correct Carpal Tunnel Syndrome problems. Using a hand exerciser a few minutes at a time a few times a week creates stronger hands, wrists and forearms. Stronger muscles fatigue more slowly, are less prone to injury and allow you to work longer. The power ball is in good used condition. 3" diameter. It does show some wear. From smoke/pet free environment.