1. Elastic and Reliable: The finger exerciser is made of quality silicone, soft and reliable, strong and sturdy, with nice elasticity and flexibility, not easy to break or fade, applicable for most people. 2. Ideal For Sports Lovers: The Finger Strengthener can improve the finger strength of athletes (rock climbing, fitness, tennis, baseball, boxing) and musicians (guitar, bass, pianist, and violinist) and daily housework ( driving, typing, writing, working, etc.). 3. Portable And Lightweight Design: Finger Trainer is small and light enough to fit in your gym bag or pocket.You can enjoy a workout at work or at leisure.Exercise your hands anytime, anywhere with the Finger Extensor Exerciser. 4. 6 Resistant Levels to Choose from: Silicone Guitar Finger Exerciser provides you with 6 levels of resistant levels, including 13LB, 17LB, and 21LB. 5. Easy Operation: The hand strengtheners are easy to use for both beginners and experienced people.You just need to put the bracelet on your wrist, and insert your fingers into the rings, then you are ready to start exercising.