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Grip Pro Trainer Resistance for Forearm Hand and Finger StrengthGrip Pro Trainer is an extremely effective finger-hand-forearm strength and endurance trainer. It comes in 3 different levels of difficulty:• Green-30lb max resistance (easier)-for lighter weight people and warming up.• Black-40lb max resistance (medium) for average weight men and stronger women.• Red 50lb max resistance (difficult) for big guys or lower-rep strength training.When compared to other portable hand/forearm exercisers Grip Pro Trainer has a great feeling in the hand and is superior to: Grip type balls-extremely boring and mostly therapeutic; metal spring devices with handles-awkward
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