Your advanced hand muscle grip strengthening and balancing solution specifically for individuals who desire another step beyond Handmaster Plus Medium. But first be sure to be able to use Handmaster Plus Medium easily through FULL ranges of motion (hand closes and opens FULLY alternating 1 second each) for one minute without pain or fatigue before advancing to Handmaster Plus Firm.
The handmaster mainly helps to strengthen all the muscles in the hand and improves grip strength.