Modern bows produce amazing arrow speeds, however, they also generate accuracy robbing vibration and game-spooking noise.  The BloodSport® Zero Vibration Transfer (ZVT) reduces noise by up to an incredible 60% while eliminating most of the shock felt by the shooter. When shot, the limbs and string generate an enormous amount of energy.  This energy is transferred directly into the bow and shooter.  The result is bone-jarring after shocks, poorly performing arrows and game-spooking noise. Unlike all other string dampeners and stops, the BloodSport ZVT® eliminates noise and vibration before it is generated.  As the string enter the ZVT brush modules, it travels forward, unencumbered, providing a full power-stroke and top arrow speeds. As the string starts to vibrate and introduce noise, the ZVT's patent-pending brushes decelerate the string. gently returning it to rest without producing unwanted noise and vibration.

If your bow has a standard 3/8" unthreaded hole in the back of the riser for a conventional string-stopper, you can use the Direct Mount ZVT.  For anything else, including threads, 5/16" rods, etc, you will need to get the Universal Mount.  This mount will come with a parts pocket of various sized rods and adapters to accomodate almost any bow.