Handmaster Plus Firm is your advanced hand exercise, grip strength training, and hand muscle balancing solution… specifically for individuals who desire another step beyond Handmaster Plus Medium. But first, be sure to master the use of Handmaster Plus Medium easily through FULL ranges of motion (i.e., the hand closes and opens FULLY alternating 1 second each) for one minute without pain or fatigue before advancing to Handmaster Plus Firm.
Professionally recommended for advanced finger, thumb, hand, wrist, and forearm exercise and grip strength training in Sports, Music, Fitness, and the Workplace.