Features: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 Resistant Levels to Choose from: Silicone Guitar Finger Exerciser provides you with 6 levels of resistant levels, including 6.6LB, 8.8LB, 11LB, 13LB, 17LB, and 21LB. You can choose the appropriate level according to your grip strength.Exercise your fingers: With the help of a finger trainer, you can easily improve the strength of your fingers, forearms and wrists; You can also train the flexibility of each finger in isolation, either wayMaterial: 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: 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.Wide Range of Users: the hand strengthener relieve wrist bands are suitable for people of different ages, and applicable for rock climbers, tennis players, golf players, baseball players, guitars, pianists, drummers and more.Perfect Gift: The hand strengthener set is perfect for improving power and flexibility in the wrists, fingers, and forearms. They are the great gifts for rock climbers, tennis players, guitar, piano, drummers and musicians. Specification:Material: SiliconeColor: Black, GreySize: As picture shownRally(option): Black (13LB, 17LB, 21LB) / Gray (6.6LB, 8.8LB, 11LB) Package Inclued:1x Finger exerciser1x Wrist strap