Ideal for Sports Enthusiasts Finger strengtheners improve performance for athletes (rock climbing, fitness, tennis, baseball, boxing) and musicians (guitar, bass, pianist, violinist) as well as everyday chores (driving, typing, writing, working , ETC.). 6 stamina levels to choose from The silicone guitar finger exerciser provides you with 6 stamina levels, including 6.6LB, 8.8LB, 11LB, 13LB, 17LB and 21LB. You can choose the appropriate level according to your grip strength. High-quality material Our finger stretcher is made of high-quality silicone material, which is safe and durable, not easy to tear, and can be used for a long time. Portable and Lightweight Design The finger trainer is so small and lightweight that you can carry it in your gym bag or pocket. You can enjoy exercising at work or leisure. You can use the finger stretch trainer to exercise your hands anytime and anywhere. Customer philosophy first If there is any problem with the product, please contact me in time. HG