This wrist and forearm trainer is made of heavy duty steel structure to prevent breaking or cracking when used with heavy weight plates. Increase the flexibility and strength in the wrists, fingers, wrists, forearms, and elbows to reduce injuries and help perform sports better. A perfect solution for athletes and who suffer from carpal tunnel syndrome. It also can be used with Olympic weight plates, kettlebells, fat grip, and more to perform wrist curls, wrist extensions for flexor muscles.