Springs Power Wrist Arm Exerciser

Do as the picture shown, each action just practice 4 to 6 times a day, the effect is equivalent to several times or dozens of times with other common Power twister.

Safe and more reliable.

Use piano spring and it has good elasticity, long life. According to the relevant institutions test, it can be used 124800 times normally, and it has the longest life in the Power twister history.

More products, please visit :

https://merrybody.en.alibaba.com/