Wirst sports crazy ball Wrist ball with NEON&counter Increase strength of fingers,wrists, ... golf, tennis, squash, cricket, badminton, baseball, bowling, basket-ball,, motocross, mountain climbing.2. Increases strength in fingers, wrists ... rubber on the surface of the ball. That can prevent the ball from sliding down to the ground, ... be broken fitness exercise wrist exercise ball with light and counter