Self-Starting Wrist Gyro Ball, Wrist Strengthening Device, Hand Enhancer, Forearm Exerciser, Used To Strengthen Arms, Fingers, Wrist Bones And Muscles Color:Black without light The upper is made of

The upper is made of high-quality PU material

promotes the proliferation of collagen and elastin

The cord length is around 135cm

With a content of 91%-99% cotton

Self-Starting Wrist Gyro Ball, Wrist Strengthening Device, Hand Enhancer, Forearm Exerciser, Used To Strengthen Arms, Fingers, Wrist Bones And Muscles Color:Black without light The upper is made ofSelf Starting Wrist Gyro Ball, Wrist Strengthening Device, Hand Enhancer, Forearm Exerciser, Used To Strengthen Arms, Fingers, Wrist Bones And Muscles The self starting wrist gyro ball is a wrist strengthening device and hand enhancer that is designed to exercise and strengthen your arms, fingers, wrist bones, and muscles. This innovative tool utilizes the centrifugal force generated by the interaction between the rotation of the wrist and the