Draw gag bits have been used with twisted, solid braided and hollow braided ropes to get a smooth gag action. These stainless cheeks not only gag smoothly but release instantly and won't hang up causing a wreck. The headstall rings unscrew for bit assembly. We recommend one of our "Cristy gag bits". The nylon cord is not a true curb. Adjust snugly to stop forward rotation of the cheeks.