Complete Hand & Grip Strengthener

Maximum hand & grip strength can be attained only when the 9 muscles that open the hand are strengthened and balanced with the 9 muscles that close the hand. Modern sEMG (surface electromyography) studies clearly illustrate that the ‘hand-opening muscles’ (extensors) act to stabilize the ‘gripping muscles’ (flexors) during all hand exercise & grip strength related activities.

In other words, hand and grip strength is dependent on the strength of both the flexor muscles AND the extensor muscles.

Handmaster Plus strengthens all 9 finger closing muscles AND all 9 finger opening muscles using one convenient hand & grip strengthener - no need for multiple hand exercises or grip strength devices.