Self-Initiation Power Ball Gyro Hand Grip Strengthener Wrist Forearm Exerciser for Stronger Wrist Bones and Muscle （Transparent Black）

Exercise your fingers, wrists, hands, forearms and shoulders to increase your arm strength. It helps the wrist to move, and gently push it with your wrist. Release your inner strength through this innovative gyro exercise, which is a gyro ball with a mechanism that allows you to rotate your wrist to increase the RPM of the gyro itself. Our wrist ball can quickly and effectively increase your grip strength and is the first choice for people engaged in sports. Professionals and amateurs can benefit from our wrist ball! Small size and easy to carry. Put one on your desk. Put one in your gym bag. With it, you can spin your healthy lifestyle anywhere!