Prime-Line D 1515 Concave Edge Sliding Door Assembly, 1-1/4 in Dia X 5/16 in W, 1 Roller, quot 1-1/4in. Steel ball bearing roller Used by Christian Porter, Full view and other glass door manufacturers Housing dimensions: W: 3/4in., L: 2-3/8in. H: 1-1/8in. Adjustable steel housing