AUTO START DESIGN: You only need to push the core in the direction of the arrow, start by the internal spring, no rope
EXERCISES WRISTS and HANDS: Spins at up to 20,000+ RPM, 132lbs to exercise and strengthen wrists and hands; You?ll feel the burn in just a minute of spinning. You can attach it to a wrist strap if you are really concerned about the wrist ball flying away
EASY TO USE - No batteries: Small, compact, and transportable, you can take anywhere. And the wrist ball with a flashing LED.No needs to worry about power running out. You can get challenging, strengthening workout anytime, anywhere, even on your lunch break
STRENGTHEN YOUR WRIST and FOREARM: Wrist ball can strengthen fingers, wrists, hands, forearms, shoulders, and bicep, etc, and also be beneficial in promoting co-ordination and blood circulation. Efficiently rehabilitates wrist pain
