What Is It: GripPro 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 to train with and Red 50lb max resistance(difficult) for big guys or lower rep strength training, Use It: GripPro trainer is very portable and easy to use almost anywhere/anytimeat your desk stuck in traffic walking on the treadmilletc, Try 3 sets of 30-100 reps a couple times a week for best results over time, Its also great for stress relief, Why Its Best: When compared to other portable hand/forearm exercisors GripPro trainer has a great feeling in the handand is superior to:Gripp type balls-extremly boring and mostly theraputic; metal spring devices with handles-awkward uncomfortable and due to the fulcrum of the spring give an uneven exercise; hand held gyros-diffcult to use, Who Needs It: Few people appreciate how important grip strength is, It affects your abilities in many hobbies and pastimesand your performance in most sports such as: golf tennis rock climing basketball baseball water skiing jet skis mountain bikes extreme sports softball harlys snowmobiles etc, SKU: GRPT001