TenPoint Crossbows String Noise Dampening System (SDS) (HCA-149) Micro-adjustable dampening rods are fitted with durable, high-impact rubber dampeners that REDUCE THE STRING'S VIBRATION without reducing the speed or accuracy of the arrow FOR USE WITH A VARIETY OF CROSSBOWS: Compatible with post-1999 TenPoint thumbhole models, except the GT Curve; package also includes adaptive hardware to fit former 6 Point Series crossbows, except the recurves, and all Wicked Ridge crossbows ALL THE HARDWARE YOU NEED: Package also includes adaptive hardware to fit former 6 Point Series crossbows, except the recurves, and all Wicked Ridge crossbows NO MORE SPOOKED ANIMALS: Mounts in the cable slot to dramatically reduce string noise and oscillation EASY TO INSTALL AND PROUDLY MADE IN THE U.S.A.