Good in Use - The finger exerciser is good for sportsman (rock climbing , fitness, weightlifting, tennis, baseball, boxing, tennis, golf and shooting) and music instrument player (guitar players, bass players, pianists and violinists) or the elderly people to train the finger Premium Materials - The finger strengthener are made of eco-friendly premium silicone that feels comfortable when you do your hand exercise.It is whippy,flexible and easy to carry. Finger Exerciser - Special for the office worker who often uses keyboard and mouse all day.It is perfect for your hand and finger to train and avoid to causing injury or pain. You can use the Strengthener Ball in office or home To Relive the Pressure - Hand Grip Strengthener Ball is nice size and easy to grip and train.It is good for you to reduce the stress in the busy life or boring life.You can use it while walking, traveling, in office, school, watching TV, phone calling or any place you want to exercise. Perfect Gift - It is a perfect gift to send to friend,schoolmate,colleague,family.Also fit the elderly people to train the finger,or the children to relive stress.