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 practice finger for seniors PREMIUM MATERIAL - The finger holder is made of high quality environmentally friendly silicone and is comfortable during manual exercises. Boost, flexible and easy to carry. Finger Exerciser - Ideal for office workers who use a keyboard and mouse all day. Ideal for exercising your hands and fingers without causing injury or pain. You can use reinforcement balls in the office or at home Stress Relief - The Grip Strength Ball is the right size for easy gripping and training. Reduce stress in a busy or boring life. You can use it while walking, traveling, in the office, at school, watching TV, talking on the phone or anywhere you want to exercise. PERFECT GIFT - The perfect gift for friends, classmates, colleagues, family. Also suitable for the elderly to exercise fingers or children to relieve stress.