Get a better grip. Building on the original Gripmaster, the Pro edition takes hand exercising up to the next level, offering athletes, rock climbers, and weightlifters a solution for reaching peak performance. Focusing on the individual aspects of the hand, fingers, and wrist, it gives you a pocket-sized approach for improving flexibility and strength and lessening injuries. Unlike traditional V-grip methods, its spring-loaded pistons isolate each finger, thus reducing strain, imbalance, and forearm exertion.. . Uses spring-loaded piston technology to isolate each finger and focus specifically on the muscles and tendons of the hands and wrists. Assists with building hand, wrist, and forearm strength. Fits into pocket, allowing you to strengthen your fingers anywhere you go. Used by athletes, weightlifters, rock climbers, coaches, therapists, and law enforcement professionals. Heavy offers a tension strength of 9 pounds per finger ??? for averale male hands wanting to build strength. Imported. 758895150026 31069300006 430701