Fun Play Wrist Ball Auto-Start Power Gyro Ball Stres Relief Grip Strength Alat Fitness Arm Exercise - Black

Sangat menyenangkan, Tidak bisa berhenti bermain !! Recommended !!!!
 
Cordless Auto-starting Torque Ball: Push the heart of the ball to build up power, rotate the ball and wrist, then you can feel the powerful centrifugal force,suitable for kids and women, Not only is a training equipment but also a toy for kid with colorful lights
 
Upgraded Metal ball core wrist gyro ball: The core metal of the enhanced wrist ball adopts an integrated turning forming process and strengthen the spring design, which can reduce the friction between core and guide rail and make it more smooth, more silent, higher speed than other power wrist ball
 
Exercises Wrists and Hands: Torque ball can exercise and strengthen the joint ligaments and muscles of hands, wrists and forearm.Especially suitable for office workers,students,rock climbers,tennis trainer,bowling ball exerciser and badminton trainer
 
Easy to Use: First follow the direction of the arrow with the thumb to push the metal core until the accumulation of force is complete.Secondly release and turn to one hand to hold.Third, the wrist rotates in the direction of the centrifugal force of the ball, each time can last 3-10 minutes