100KG Gyro Power Ball Hand Exerciser LED Wrist Strengthener Muscle Training Powerball Wrist Exercise Equipment Motion Easy to Ca Practical Use

Training Site : Hand,Wrist Department Name : Unisex Material: plastic,aluminum alloy Type of sports : Strength Training Product Description: 【Beneficial for Health】 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 cool LED light inside lights up when it is rotated, no battery required, and can be powered by rotating the wrist. kill time and increase the fun!