Power Wrist Forearm Hand Grip Exerciser Strength

The spring is carbon steel spring, and after heat treatment, so the spring force is strong, can maintain the initial spring for a long time, not easy deformation. The surface is not common spray paint, more not be to roast lacquer, it is electroyong (technical term: electromagnetism field way is handled) handle, so the surface paint layer is even and not easy to drop, durable.

Specifications:
Material: ABS+ steel spring
Color: Black, Red, Blue, Green
Size: 265*140*28mm