Item Type: Tennis Racket Dampener Material: Silicone Weight: Approx. 44g/1.55oz Diameter: 23mm/0.91in Package List 6 x Tennis Racket Dampener 1Silicone Material:Tennis racket dampener is made of silicone material, good shock absorption effect, not easy to fall off, durable, and can be used for a long time. 2Vibration Absorbing: Effectively reduce the amplitude of the ball impacting the net, reduce conduction, effectively increase comfort, and the reverberation also changes. 3Tennis Ball Shape: The racquet string shock absorber is tennis shaped, which can not only absorb shock but also decorate the racket. Increase the decorative beauty of the racket 4Effective Elbow Protection: Using a tennis racket for too long can lead to tennis elbow. Add the dampener after the moment of striking the ball obviously feel the vibration is reduced. 5Make Shot Comfortable.: Tennis racket dampeners help disperse the energy of the ball when it hits the racket. Minimize the vibration of your racket while providing excellent arm comfort.