The GripmasterPro isolates and strengthens each finger individually helping you improve your overall strength endurance and dexterity. A few daily workouts with the GripmasterPro and you ll enjoy better control of a baseball/softball bat tennis... more
High-quality hand exerciser with spring-loaded finger piston technology Isolates and strengthens each finger individually for better overall coordination Improves user control of bats racquets clubs guitars and other sports equipment Fits conveniently... more
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