Item Type: Tennis Racket Vibration Dampeners Product Material: Silicone Color: Blue, Yellow (Random Delivery) Weight: Approx. 31g / 1.1oz Product Size: Approx. 27x8mm / 1.1x0.3in Package List 10 x Tennis Racket Vibration Dampeners 1Reduce Damage to Elbow Joint: After using the tennis racket vibration dampeners, hitting is more comfortable, reducing the damage of vibration to the elbow joint, and improving sports fun. 2Shock Absorption Effect: The tennis racket shock absorber has good shock absorption effect and increases the decorative beauty of the racket. 3Good Function: Silicone tnnis racket vibration dampeners is using for palying tennis, in order to gives the hand less impulse. 4Silicone Material: Tennis racket vibration dampeners are made of silicone material, which is soft, durable and lightweight. 5Multi Functions: Tennis racket shock absorber can be used as an ornament for tennis rackets, also can be a gift for the tennis palyer.