Item Type: Bow String Shock Absorber Material: Rubber Weight: Approx. 5g / 0.2oz Product Size: Approx. 38x9mm / 1.50x0.35in Aperture: 2.3mm / 0.09in Package List 2 x Bow String Shock Absorber 1VIBRATION DAMPENING EFFECTIVE: It can effectively reduce bowstring vibration and noise, providing a smoother and quieter experience. 2DESIGNED FOR COMPOUND BOWS: Precise sizes and shapes make it perfectly suited for a wide range of compound bow makes and models, providing the bowhunter with the best possible experience. 3MATERIAL: Made of wear proof rubber material with good durability and reliability to ensure that it is not easy to be damaged in long term use. 4QUICK INSTALLATION: It has a simple and easy to use design that can be easily installed on the bowstring without additional tools, saving time. 5MULTIFUNCTIONAL APPLICATION: Not only dampens vibration and silences sound, but also provides additional string protection, effectively extending the life of your bowstring and making your bowstring last longer.