Features: 1Counter: Our hand grip is equipped with a counter, which can be counted by pressing and can be reset when it is rotated, which is very convenient and does not need to be adjusted one number at a time. 2Efficient Exercise: Our strength trainer can exercise efficiently, easy and portable, free to train, make your exercise more interesting and enjoy the fun of exercise. 3Ergonomic Design: Our hand grip strengtheners are ergonomically designed, comfortable to hold, and fit the curvature of the human palm when held, which is especially considerate for you. 4Spring: The strength of our forearm strength trainer is adjustable. you can easily adjust the spring strength by turning the knob. According to your own conditions, you can adjust how you want. 5Applications: Our grip strengthener is great for sports enthusiasts, arthritis, tendonitis, and rehabilitation training, etc., which helps them regain strength. Package included: 1 x&nbspHand Grips