MIRROR DOOR ROLLER ASSEMBLY – The Prime-Line N 6870 Mirror Door Roller Assembly is most commonly used on wood framed sliding mirror doors CONSTRUCTION – The wheel is constructed of durable plastic which provides for a smooth, long-lasting, quiet roll and features a narrow concave (grooved) edge INSTALLATION – It mounts on the bottoms of sliding mirrored closet doors, it is adjustable once installed, and it is used by many closet door manufacturers (tabs will sit flush to door frame and the back mounting lip helps to secure the roller assembly to the door DIMENSIONS – The housing has 2-1/2 inch mounting hole centers, its body measures 1-11/16 inch wide and it’s only 7/16 inch deep NOTE - Please review the line art for dimensions and compare with your needs before purchasing (Not Universal) Adjustable steel housing with non-ball bearing plastic roller 1-1/2 in. center grooved plastic roller Used on steel framed doors