With the Xtensor XCB100 Hand Exerciser exercise the muscles of your hand. It provides to your hands, wrists, fingers and elbows with the same benefits your body gets from doing yoga. Dynamically rebalancing strength in your hands, wrists and forearms deep into the elbows, the site of most elbow pain. The Xtensor fits either hand with multiple tension settings specific to each finger. The Xtensor exercises your fingers as you open them stretching and strengthening your hands a completely different way.