1、EASY TO INSTALL: You can easily assemble these tennis racket damper knot directly on the racket, they are easy to install, not easy to deform, tear or break, and can be stored for a long time. 2、SAFE TO USE: The outside of the tennis racket shock absorber knot is comfortable, no need to worry about scratching your fingers, silicone can partially absorb the vibration and reduce the pressure on your arm. 3、DURABLE DESIGN: Tennis racket vibration dampener knot has a long service life, soft and durable, good elasticity, strong tensile strength, can be used for a long time, reduce the noise of the ball string, reduce the impact sound every time you hit the ball. 4、SILICONE MATERIAL: Tennis racket string shock absorber is made of high purity silicone material, which can reduce the change of hand feeling caused by a lot of vibration and reduce the impact of opponents when hitting the ball. 5、SUITABLE FOR PEOPLE: Tennis racket string vibration dampener is easy to use, even if it's your first time, and suitable for adults and children, with multiple color mixes and vibrant colors. 10 x Tennis Racket Damper Knot(Color Randomly Mix and Match Shipping) Item Type: Tennis Racket Damper KnotMaterial: SiliconeColor: Red, Blue, Rose Red, Yellow, Fluorescent Green, Black, Transparent Color (Color Mix and Match)Application: Tennis Racket, Squash Racket