Hand grip strengthener is perfect for improving strength and power.You can not only stretch the muscles in your palms and wrists also strengthen the individual , also strengthen the individual . The finger resistance bands can also finger strength for athletes (rock climbing enthusiasts,fitness,tennis,baseball,,tennis,golf and ) and musicians (guitar players,bass players,pianists and violinists).See results fast using your new hand exercise equipment. Fashion design,easy to use,put your thumb in the big hole,other holes one by one.Easy to clean,simply wash with water and soap,resistance fall,pliability,easy to stretch. and efficient,help the imbalances caused by excess strengthen your muscles expansion-exciting. The exerciser has a small size and modern looking.Portable and lightweight, fits into your gym bag or hand bag,you can repetitions anywhere. How to use finger trainer: onto fingertips centering oval indents Start with fingertips Open your hand all the way. Warning Tips: Stretch the products around your fingertips. Now we have improved products - add the holes and try to avoid the problem of . the instructions and do it for at least 3 ,and ,always hold your strength.and control the movement. Specification: Size: 7.7 x 4 x 1.3cm / 3 inch x 1.57 inch x 0.51 inch Color: Blue : 3pcs Material: Silicone Package Contents: 3 * Finger stretcher Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.