Welcome to the shop! EASY TO USE - Finger Exerciser for athletes (climbing, fitness, weightlifting, tennis, baseball, boxing, tennis, golf, and shooting) and instrumentalists (guitar, bass, pianist, and violinist) or finger training for seniors. PREMIUM MATERIAL - The finger strengthener is made of environmentally friendly premium silicone and feels comfortable when doing hand exercises. It is soft, flexible, and easy to carry. Finger Exerciser - Designed for office workers who use keyboards and mice all day. Perfect for exercising your hands and fingers without causing injury or pain. You can use the booster ball in the office or at home. Stress Relief - The Grip Strength Ball is a good size for easy grip and exercise. Perfect for reducing stress in hectic or boring lives. You can use it while walking, traveling, in the office, at school, watching TV, talking on the phone, or wherever you want to exercise. PERFECT GIFT - The perfect gift for friends, classmates, colleagues, and family. Also suitable for seniors to exercise their fingers, or children to relieve stress. Size: 12*9cm Color: blue Packing list: 1pc Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!