Center rigger base mounts are constructed from 316 marine grade stainless steel. Installation is simplified by the use of a clamp-on mount, that fits either 3/4" IPS or 1" IPS pipe found on the hoop of most standard TTops. Designed for universal use with TACO Center riggers and other brands that accept 1-1/8" butt end diameter center riggers. Accommodates 12' 1-1/8" center rigger poles, which telescope to less than 5'6". Kit includes mount,center rigger and rigging kit. Fits most T-Top and hard top applications.