Specification:Product Name: Finger ExerciserMaterial: SiliconeResistant level: 6.6LB, 8.8LB, 11LB, 13LB, 17LB, 21LBColor: black;grayPacking List:Finger Exerciser*1Wrist Strap*1Features:(1) Ideal For Sports LoversThe 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.).(2) 6 Resistant Levels to Choose fromSilicone 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.(3) High-Quality Material Our Finger Stretcher is made of high-quality silicone material, which is safe and durable, not easy to tear and is small enough to fit in your gym bag or pocket and can be used for a long time.(4) Portable And Lightweight DesignFinger 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.(5) Physical Therapy & RehabilitationHand workout equipment for arthritis, stroke rehab, carpal tunnel, tenosynovitis, fractured, tendon surgery and tennis elbow, reduce stiffness and pain.(6) Athletes & Musical InstrumentsThe grip strength trainer kit is works for improving power and flexibility in the wrists, fingers, and forearms. Gifts for rock climbers, Tennis players, Guitar, Piano, Drummers & Musicians.(7) Durable & Ergonomic Design: Adjustable hand extensor exerciser can be worn comfortably by any size wrists and finger, Suitable for finger workout habits. Suitable for Teens and adults.Note:Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.