3 Resistant Level Finger Exerciser and Strengthener3 Resistant Level Finger Exerciser and Strengthener Features: Exercise your fingers; With the help of the finger trainer, you can easily improve the strength of your fingers, forearms and wrists; you can also train the flexibility of each finger individually, both ways are possible High quality material; Our finger trainer is made of high quality silicone material, which is safe and durable, not easy to tear and can be used for a long time. Finger