Material : ABS + zinc alloy

Power Wrists LED Gyroscopic Powerball Autostart Range Gyro Power Wrist Ball With Counter Arm Hand Muscle Force Trainer Fitness Equipment

Select by fitness effect: plastic arm / thin arm
Fitness equipment classification: A type grip

Advantages: 

1. Integrated housing design
2. Gravity foot
3. Valuable zinc alloy material
4. Embedded combination

Color Classification: Blue self-inspired light, orange self-inspired light, green self-inspired light, purple self-inspired light, gray self-inspired light, transparent self-inspired light