- Protect & Train your wrist with the fun Joy Wrist Trainer Ball.
- First wind up the ball in the direction marked on the ball, then release and hold the ball while rotating your wrist with the ball.
Pro Tip: If you follow the resistance on the ball / sound while turning the ball, the ball will spin faster and with brighter lights. - Maintain a minimum level of speed to maintain the lights.
- Now available for a limited time.
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