Black Diamond Forearm Trainer

The Black Diamond Forearm Trainer is sure to help you get that finger and forearm strength super strong for your important project this year. Simply squeeze the ring while it supplies resistance so you can tone up those flabby forearm muscles while working, driving or before climbing as a warm up.

Use this rubber ring forearm trainer for warming up--it helps prevent elbow and finger injuries. Constructed of synthetic rubber--will not lose its resilience even after hundreds of squeezings.