The Planet Waves Varigrip Hand Exerciser hand fitness tool is
designed to develop and maintain the strength and dexterity of your fingers and
hands. Built-in simulated guitar strings help build finger calluses.
Ergonomic design and variable tension Provides customized
conditioning for fingers, the entire hand, the wrist and forearm.
Reversible molded grip Uncovers simulated strings to help develop
and maintain finger calluses.
Individual adjustable tension for each finger Allows you to set
the tension from light to hard.