Wicked Ridge by TenPoint Crossbows Noise-Reducing String Dampening Rods (HCA-13715-W) REDUCES string noise and oscillation Made with high-impact Zytel rods Mounts directly to the riser Compatible with Wicked Ridge Invader G3, Warrior G3, Ranger, and Lady Ranger models only Not compatible with Wicked Ridge Invader X4 and Wicked Ridge Warrior Ultra-Lite