Prime-Line D 1791 Roller Assembly, 1-1/8 in Dia Roller, 5/16 in W Roller, Steel, 2-Roller, Plain Back Mounting

Steel ball bearing tandem roller assembly, adjustable steel housing. Used by several door manufacturers. 3/4 in W, 3-1/8 in L, 1 in H. Concave roller edge type. 2 tandem wheels in roller assembly.