GripPro Trainer is a finger-hand-forearm strength and endurance exerciser. Great for any sport, hobby or pastime that needs strong hands and forearms. Can be used anywhere anytime. Available in 3 levels of resistance. Display includes 12 of each (30 lb, 40 lb, 50 lb) GripPro Trainers, plus one FREE GripPro Trainer. Limited quantity 411559.