The LimbSaver Super Quad Dampeners deliver a smoother shot by reducing noise and vibration. Constructed with patented Decay Time Modification system that has a dampening effect and cancels energy that threatens to throw off your accuracy. No hardware is required for these dampeners for a quick and easy installation. The Super Quad Dampeners fit 95% of all standard and wide split limb compound bows and crossbows. Lightweight and low-profile design that will help improve your performance.