GRIPMASTER is simply the best way to build and maintain strong, healthy hands. Professional sports trainers, athletes, and therapists use GRIPMASTER because of its unique ability to challenge each finger individually. Grip is essential to contolling the racquet and hitting solid, accurate shots - any tennis player will benefit greatly by building superior hand, wrist and forearm strength using the GRIPMASTER!
Available in 4 color-coded models of graduated resistance:
Yellow: 3 pounds per finger
Blue: 5 pounds per finger
Red: 7 pounds per finger
Black: 9 pounds per finger