LimbSaver TwistLox Limb Dampener for Split Limb Bows - Manufacturer Listing Noticeably dampens noise and vibration when shooting compound bows Easy to install -- simply slide in, twist, and lock up for a snug and secure fit Can be used in two orientations on most standard and wide-spaced split limb bows Made from LimbSaver's proprietary vibration-dampening NAVCOM material Use two or more TwistLox dampeners per limb; package of four TwistLox dampeners