2-in-1 Hand Training Device Set: The package includes a set of silicone guitar finger and forearm trainer exercises with counting function; Daily training with a set of 2-in-1 hand training devices helps restore hand injuries, rheumatoid arthritis, arthritis, carpal tunnel, tendonitis, fractures, wrist fractures and tendon surgery. -Silicone Guitar Finger Exerciser: The silicone guitar finger exerciser offers 6 levels of resistance, including 6,6 pounds, 8,8 pounds, 11 pounds, 13 pounds, 17 pounds, and 21 pounds. You can choose the right level depending on the grip strength. Finger amplifier can improve the finger strength of athletes (climbing, fitness, tennis, baseball, boxing) and musicians (guitar, bass, pianist and violin) and daily household chores (driving a car, typing, typing, working, etc. ). -- Forearm trainer with counting function: GRM handle adds mechanical counter to the base. Press the button to count automatically. Write down how often you train each time and use it again. Stepless adjustment of settings. The hand trainer can be infinitely adjusted from 5 to 60 kg, making it ideal for beginners, advanced, fitness, strength training, gymnastics, mountain biking, climbing. -Rehabilitation devices: daily training with this grip trainer helps restore hand injuries, rheumatoid arthritis, arthritis, carpal tunnel, tendonitis, fractures, wrist fractures and tendon surgery. - Ergonomic handle: suitable for everyone and fits easily in your gym bag or purse. Whether at home, on the go, or in the office. The hand trainer set is the perfect companion to keep your muscles and finger joints moving.