CHOOSE YOUR KIT - Our grip strength trainer has two variations: Rehabilitation Kit (10 lbs, 20 lbs, 40 lbs spare silicone straps) for a smooth recovery and Athletic Kit (40 lbs, 60 lbs, 75 lbs spare silicone straps) to increase fingers and wristsstrength. Each kit of hand grip strengthener includes silicone straps of three difficulty levels. Choose your kit before reading the further information. ATHLETES MUSICIANS: Our finger strengthener is suitable for athletes and musicians who want to achieve the best results. Hand exerciser can increase finger and grip strength for athletes (rock climbing, tennis, baseball, boxing, golf, shooting)and musicians (guitar, piano, violin players etc.). The perfect design of the hand gripper maximizes the range of activities during exercise. HOW IT WORKS: Our wrist strengthener is designed to target correct muscles to improve the power, flexibility and elasticity of the wrists, fingers and forearms. finger exerciser isolates and exercises each finger individually for strength, dexterityand endurance. SAFE & DURABLE: The hand strengthener is made of great elasticity silicon, forearm extensor bands is hard to tear, velcro type adjustment can be worn by anyone with comfortable fit. The grip strengthener is small enough to fit into your gymbag or pocket. You can enjoy exercising during work or leisure. Exercise your hand anywhere and anytime with the forearm strengthener.