ResCaps allow water pipe owners to cut down on cleaning time by making cleaning glass water pipes fast, safe & easy. The silicone ResCaps by ResOlution is an innovative silicone cap which stretches to tightly fit over openings of your water pipes - the mouthpiece and joint. Fill your water pipe with your favorite liquid cleaner, cap it off with ResCaps, and shake it until clean. No mess, no spills, simple cleaning. ResCaps are universal fit, and comes complete with 2 small 35mm caps and 1 large 70mm cap.