This Prime-Line N 6790 mirror door roller assembly features snap-in bracket clips which are designed to lock into steel-framed door rails to hold the doors together. Use this mirror door roller assembly to replace old or broken wheel assemblies on your steel framed mirror doors. Installation is quick and straightforward, as it mounts on the bottoms of sliding mirrored closet doors, and it is fully adjustable once installed. Made of a steel housing and a FLAT edge plastic wheel, this mirror door roller assembly is strong, durable and built to last. Plus, the durable plastic wheel provides a smooth, long-lasting and quiet roll. This mirror door roller assembly has a 1-7/16 inch outside diameter wheel that is 1/4 inch thick, and a housing that measures 3-1/16 inch wide x 3-3/8 inch tall. Please see the line drawing and compare with your needs before purchasing.