This dilator harness is designed to work exclusively with our anal dilator set or our anal stretching rings. It consists of two straps in front, so access is not blocked and one in back as well as a waist band. All straps are adjustable so it will fit just right. It comes with two screws so you can attach either dilators or anal stretching rings. Screws are secured to the harness by retention washers so they don't fall out. Extra screws and retention washers included just in case!