Silicone finger trainer

Gripster Hand Trainer - Ideal for sports enthusiasts: the Finger Gripster can exercise the strength of the fingers of athletes (climbing, fitness, tennis, baseball, boxing) and musicians (guitar, bass, pianist and violinist) and daily household chores (conduct, noise, writing, work, etc.). Gripstar Silicone Guitar Finger Exerciser offers 6 levels of resistance, including 6.6 LB, 8.8 LB, 11 LB, 13 LB, 17 LB and 21 LB. You can choose the appropriate level depending on the thickness of your handle. Gripping force strengthening device: exercise tool for fingers and fingers - Durable training tool with 6 levels of resistance and grip reinforcement for patient strength training