Stanley Hardware S403-532 CD40-3532 Pocket Door Guide in White Coated Authorized Replacement from National Hardware Stock #N344-838 Designed as a center or side guide for by-passing doors Keeps door properly aligned Easy installation Manufactured from nylon White plastic pocket door guide Stabilizes sliding movement and provides guide at bottom of door Adjustable to fit single pocket doors 3/4 to 1-3/8-inch thick