These rubber whiskers are very easy to attach and instantly reduce string vibration and noise at the shot. These whiskers can be attached to the outside of the string by tying them on or by using serving or can be inserted between the fibers of the string for increased noise dampening. Lightweight and easy to attach these whiskers are a must for any bow string. FeaturesEasy to use, ties to the bowstringDampens string noise & oscillationsLightweight