OVERVIEW: Designed for any 18" roller covers, standard (1-½") or jumbo (2-¼") diameter, all nap heights. Installation and removal of a roller cover is quick and easy - no loose hardware. Lightweight yet strong polypropylene construction, will not rust. KEY FEATURES: 18" Big Ben roller frame. Maximum production and saves time. Compatible with all threaded & Sherlock GT extension poles (R097, R090, R091, R092, R096). R085 spare legs available.