LED Powerball Wrist Trainer Ball Wrist Strengthener Gyro Self-Starting Forearm Trainer Gyro Ball for Strengthening Muscles

Hign-concerned Chemical : None Application : Arm Model Number : OUT180 Material : ABS & TPR Size : Multi Size SML Standard Voltage : None

Origin : Mainland China Item Type : Massage & Relaxation

Product Description:

Beneficial for Health Effective Increases strength in fingers, wrists, hands,forearms, biceps, triceps, ligaments and shoulders.

NEW DESIGN WITH LED New design with LED light, you can spin quickly and it's fun.The LED light inside lights up when it is rotated, no battery required, and can be powered by rotating the wrist. Recover sore muscles, kill time and increase the fun!