Portable Size: Finger exerciser hand strengthener is small and light enough to fit in your bag, allow you can enjoy a workout in your time._x000D_ Suitable For: Finger extension stretcher can improve the finger strength of athletes and musicians, also ideal for people who is driving, typing, writing._x000D_ 6 Resistant Level: Finger strength trainer with 6 resistance levels to choose from, which including 6.6 lb, 8.8 lb, 11 lb, 13 lb, 17 lb and 21 lb._x000D_ Excellent Silicone: Our finger stretcher is made of silicone material, which is safe and durable, not easy to tear and can be used for a long time._x000D_