Parallel Halo Power Wrist Ball AUTO Start Gyro Ball with LED Lights Forearm Exerciser Wrist Strengthener for Strengthening Muscle and Bones (Blue+led)

How to Start it 1. Pull off the plastic insulation before use. 2. Toggle the ball along the double DIRECTION ARROW to the max resistance,then release it,fast enough to have the ball turn the LED on. 3...