1、The use of high‑quality silicone material, high elasticity, soft touch feel, durable, suitable for people of all ages. 2、It is small in size and can be carried with you. It is suitable for people who often work with their fingers and often go out. 3、The use of high‑elastic elastic band, does not stretch the wrist, rolls flexibly. Double fixed, free to adjust the size of the bracelet. 4、Contribute to wrist rehabilitation training, exercise knuckles and palm muscles, exercise fingers and arm strength. 5、The ball can effectively stimulate the major acupoints of the palm, promote blood circulation, and achieve the effect of exercise and health care. Item Type: Hand Exercise Balls Material: Silicone Features: 1. Rehabilitation training 2. Exercise knuckles and palm muscles 3. Press the fingers and activate the joints 4. Exercise finger and arm strength. Instructions: The size of the grip ball is not large, just hold it in the palm of your hand, hold the grip ball and pinch it hard, you can feel the pressure of the grip ball on your fingers. Generally, if you continue to hold it for N times, you will feel numbness and heat in your palms, and then you will feel very comfortable. Because when you squeeze the force ball hard, the flexible ball deforms and fills the palm. As the palm becomes loose and tight, the ball can effectively stimulate the major acupuncture points of the palm, promote blood circulation, and achieve the effect of exercise and health care. Basic Exercises: Hold the grip ball completely in the palm of your palm, and do ten hand stretch exercises, first doing right hand exercises and then left hand exercises, alternate exercises. For People: 1. Rock climbers and bodybuilders exercises finger and grip strength; 2. Fans of badminton, table tennis, basketball and other ball sports; 3. Learn to play the piano and exercise finger strength; 4. For people who use the computer keyboard and operate the mouse for a long time Cleaning: In order to extend the service life of the silicone grip ball, it is recommended to wash gently with water 3 x Hand Exercise Balls