Feature: 1. Silicone Material: Long buckle tennis racket shock absorber is made of silicone material, good shock absorption effect, not easy to fall off, durable. 2. Good Features: Effectively reduce the amplitude of the ball impacting the net, reduce conduction, effectively protect and increase comfort. 3. Attenuation of Vibration: After adding this shock absorber, the vibration is obviously weakened at the moment of hitting, and the aftermath of hitting is also changed. 4. Protective Function: Long shock absorber for tennis racket can alleviate the occurrence of tennis elbow. Length is about 105mm / 4.1in. 5. Wide Applications: Tennis racket vibration dampeners are suitable for most racquets. Have some fun while dampening string vibrations. Specification: Item Type: Tennis Racket Vibration Dampeners Material: Silicone Product Size: Approx. Length 105mm / 4.1in Color: Red, Black, Blue, Yellow Weight: Approx. 15g / 0.5oz. Package List: 4 x Tennis Vibration Dampeners Note: Please allow 1‑3mm error due to manual measurement. Thanks for your understanding.