Product Size: 10*8*0.8cm Color: green, black and gray Material: Silicone Package content: 3*Finger strength training device 1.Fitness enthusiastsStrengthen Fitness & Sport enthusiasts wrists, improve the dexterity of your fingers and increase the strength your hands can apply 2.Safe silicone material, not easy to tear: Made from high-quality silica gel, BPA-free. Washable and lasts longer and odourless, no terrible smell. 3.Train the easy way: Our finger resistance bands can improve your finger strength for athletes (climbing enthusiasts, fitness, tennis, baseball, boxing, tennis, golf and shooting) and musicians (guitar, bass players, pianists and violinists). See results quickly with your new hand trainer. 4.Use it anywhere, anytime. The finger trainer is small in size and boasts a modern look. You can use it while walking, travelling (car, plane, bus), in the office, in school, when watching TV or any place you want to exercise. 5.Special design: If you suffer from rheumatoid arthritis, arthritis, carpal tunnel, tenosynovitis or tennis elbow and are on the path of recovery from a broken wrist or tendon surgery, then this is the perfect gripper for you.