D'Addario Varigrip PW-VG-01 Hand Trainer for Grip Strength Training with Tension Adjustment Screw

A hand training tool developed by musicians for musicians. Develops and maintains the strength, flexibility, and dexterity of the fingertips, hands, wrists, and forearms needed to play an instrument. Adjustable tension for each finger from extra-light to extra-medium. The reversible grip allows for individual finger or overall grip strength training. The simulated parts help to harden the skin on your fingertips, preventing pain when playing guitar.