The item is siliconetennis racket dampener, which can effectively reduce the vibration caused by hitting the ball and keep the stability of the tennis racket. Silicone material ensures its great stretchy performance and endurance. Feature - Color: Red, Rose red, Pink - Material: Silicone- Size: About 3.00X3.00X0.40cm/1.18X1.18X0.16inch- Siliconetennis racket dampeners which can effectively reduce the vibration caused by hitting the ball and keep the stability of the tennis racket.- Quality silicone material ensures its great stretchy performance, endurance and practicability.- Installation is quite easy. Just keep it stuck on the tennis racket.- Especially suitable for players who like to weigh their rackets.- The absorbers are suitable for all kinds of tennis racket. Great helper for professional tennis players in tennis match.Packing list: 6 x vibration dampening devices