The new TwistLox limb dampeners for split-limb bows are a result of extensive development and testing. Made from the NAVCOM(R) technology (Noise and Vibration Control Material), TwistLox noticeably dampen noise and vibration by up to 75% when shooting your compound bow.Reduce up to 75% of unwanted noise and vibrationEasy installation; no tools necessaryDesigned with two orientations to fit wide or narrow-spaced limb gapsMade from LimbSaver's proprietary NAVCOM material to dampen vibration and unwanted noisePackage includes four TwistLox Limb Dampeners