Great exerciser for strengthening hands, wrist, fingers and forearms. The small and compact design allows you to take this anywhere The Gripmaster hand exerciser ideal for strengthening your hands, great for a wide variety of sports and activities. With multiple exercises, the Gripmaster isolates each one of your fingers and trains them individually, there are loads of different ways to hold and use the Gripmaster to train different parts of you hand, wrist, forearm and fingers. The Gripmaster exercises the forearm muscles, these connect to the wrist and fingers and give you greater grip power and endurance. Also, the Gripmaster trains the muscles in the hand which provide the finer movements, coordination, and control of the fingers. This one small device works to improve strength, endurance and coordination of all the muscles within the hand and most muscles and tendons in the forearm. With its ergonomic design it fits comfortably in your hand and allows for maximum dexterity. Great for loads of sports such as rock climbing, weightlifting, basketball, baseball, tennis, martial arts or any sport where a good grip needed. Or just improve your handshakeThe black Gripmaster offers 9 lbs per finger. Recommend for strong hands.