About this item Finger trainer hand trainer: hand trainer training device can improve the strength and flexibility of the wrist, fingers and forearm. Grip trainer is also suitable for people who frequently use computers and mobile phones, relieves fatigue. By stretching as long as possible, finger trainer works and relaxes muscles and emotions. until they get tired. When you let go, you feel relaxed. Finger extensor exerciser: finger trainer is made of high-strength silicone, soft and not cracked, safe and odourless. Strong and robust. Fingers, palms and arms can be trained and train the whole hand. is the hand trainer finger trainer for everyone. Adjustable silicone hand trainer: the finger trainer is small and light enough to fit in your sports bag or bag. You can enjoy a workout at work or in your free time. Train your hands anytime and anywhere with the finger extensor exerciser. Grip strength trainer: grip strength trainer offers you 6 resistance levels, including 6.6 lb, 8.8 lb, 11 lb, 13 lb, 17 lb and 21 lb. Depending on the grip strength, you can choose the right level for training. Grip finger trainer: hand training finger trainer is widely used for mountaineering, fitness, baseball, boxing, guitar, bass, piano, violin, driving, typing, working and any training that requires finger strength. Silicone finger trainer hand trainer is a great gift for climbers, athletes, musicians and office workers.