Easy to Use - The finger trainer is good for athletes (climbing, fitness, weightlifting, tennis, baseball, boxing, tennis, golf and shooting) and musical instrument players (guitarists, bassists, pianists and violinists) or the elderly, that exercise finger Premium Materials - The finger rest is made of high quality eco-friendly silicone, which is comfortable during hand exercises. It is impact resistant, flexible and easy to carry. Finger Exerciser - Specially designed for office workers who use keyboard and mouse frequently throughout the day. It's perfect for exercising your hand and fingers and avoiding injury or pain. You can use the Strengthener Ball in the office or at home Experience the Pressure - The grip reinforcement ball is good in size and easy to grip and exercise. It is good for you to relieve stress in busy or break down boring lives. in the office, at school, in front of the TV, on the phone or wherever you want to exercise. PERFECT GIFT - This is a perfect gift for friends, classmates, colleagues, family. Also suitable for the elderly to exercise fingers or for children to experience stress again. Compact and portable Small size and great design (12 x 9 cm / 4.72 x 3.54 inch), easy to put in your gym bag or purse, whether you are at home, at work, on the go, in the car or while enjoying your favorite sport as the rings are light and simple to be transported. Ergonomic design The finger trainer is made of silicone materials, flexible and whipped. Suitable for the elderly to exercise energy, office workers to relive pressure, children to exercise fingers, good to use Package includes < /p> 1 x Grip Enhancer