Feature: 1. Silicone Material: Long buckle tennis racket shock absorber is made of silicone material, providing good shock absorption, secure fit, and durable performance. 2. Performance Benefits: Helps reduce the impact amplitude when the ball strikes the strings, minimizing vibration transmission for improved comfort. 3. Vibration Dampening: Reduces string vibration noticeably upon impact, enhancing feel and control during play. 4. Protective Design: May help reduce strain on the arm, potentially aiding in the prevention of tennis elbow. Length is approximately 105mm / 4.1in. 5. Compatibility: Designed to fit most standard tennis rackets. Adds functional vibration dampening with a simple installation. 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. Thank you for your understanding.