Trainer Relax Gyroscope Ball High Quality Wrist Muscle Power Ball Gyro Arm Exerciser Strengthener LED Fitness ball

Trainer Relax Gyroscope Ball High Quality Wrist Muscle Power Ball Gyro Arm Exerciser Strengthener LED Fitness ball

Characteristic:

1.  computer calibration ball heart balance, high stability and low noise

2.  special durable plastic materials

3.  steel shaft is not easy to break

4. ball shell adopts advanced silicone rubber slip ring, exquisite and beautiful

Rope start