The Power Wrist is great way to tone and strengthen your forearm muscles. It builds-up your wrist and arm strength, with the latest breakthrough technology. The Power Wrist helps improve firmness and power needed for Golf, Tennis, Bowling, Basketball, and most other sports. It features dual-action capability, adjustable tension bar, high density comfort-foam grip, and custom fit hand/arm guide. The overall benefits of living an active lifestyle are almost endless. Essentially being healthy is about adding balance to your life.