Description: Excellent string vibration reduction Easy installation, with back adhesive, they are NOT made of skin or leather, they are made of composite material, Protect bow limbs and bowstring Make sure your bow limb is clean before you install the silencer Choose our silencer, make your practice much fun Specification: Material: Composite material Size Chart: Size: approx. 9 cm x 2 cm / 3.54 x 0.78 inch Package Includes: 2 x Bow String Silencer Note: The size is measured by hands, please allow minor error of measurement, thank you Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.