Complete hand: strength and rehabilitation, the science of exercise.Basic training of gripping hands, rehabilitation.You can train your fingers when you are at home, at work or while walking because it is easy to carry.Allows medical professionals, trainers, athletes, musicians and other users to control the resistance of the hand device.Especially suitable for stroke patients, computer users, rock climbers, athletes, musicians and people who need rehabilitation. ProductMaterial: PUSize: 65x56mmthe main exercise:1. Press against the ball for 1 second.2. Open spread against the ball the rope for 1 second.3. Repeats until comfortable fatigue. Features:1.Often ignored exercises extensor muscles to prevent and relieve symptoms of carpal tunnel syndrome, arthritis and repetitive strain injuries. Basic gripping hand training, rehabilitation.2.A grip strengthener correctly on the kinetic chain of the grip, a powerful and easy to use device for the treatment and rehabilitation of the exercise the exercise, evolution ergonomics dynamic market.3.Muscle training, building general wellbeing, and simple. If you use your grip hands or grab them in sports, musical pursuits, workplaces or hobbies, muscle imbalance is a fact, not one - and your health and performance is at risk.4.Performance and balance in solution: sports, music, workplace ergonomics, computers, smart phones and video games, hobbies. Package contains:2pcs * Hand Fingers and Wrist Exerciser Ball