Item Type: Tennis Racket Vibration Dampener Material: Silicone Gross Weight: 11g / 0.4oz Product Size: Approx.23.5 x 22 x 8mm / 0.9 x 0.8 x 0.3in Package List 10 x Tennis Racket Vibration Dampener 1Shock Absorption: This tennis racket vibration dampener adopts soft materials, with good shock absorption, and reduced conduction. 2Injury Prevention: It is more comfortable to hit the ball after use, reduces the damage to the elbow joint caused by vibration, and improves sports fun. 3Decorative Effect: The silicone shock absorber with heart shape also increases the decorative aesthetic feeling of the racket, has decorative effect. 4Firmly Fixed: This shock absorbing dampener is simple to use, easy to operate, not easy to fall off after installation, firmly fixed, durable. 5Lightweight: Made of premium silicone, soft, durable, light, compact, easy to store and carry, and can be carried at any time for outdoor sports.