Mounted in the cable-slot, the SDS dramatically reduces string noise and oscillation. 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. The SDS is compatible with post-1999 TenPoint thumbhole models, except the GT curve. The package also includes adaptive hardware to fit former 6 Point Series crossbows, except the recurves, and all icked Ridge crossbows.