The LimbSavers Broadbands reduce vibration and noise with state-of-the-art Multi-Durometer Dual Broadband technology. Engineered to function over a broadband frequency range of 20 Hz - 20,000 Hz. Combination of NAVCOM ring and center dampener for a vast frequency response. Low-profile and lightweight for convenient bow maintenance. Interchangeable colored broadband rings that are easy to install.