This mirror door roller assembly is constructed of a steel housing and flat edge plastic wheel. The housing measures 3-1/16 inch wide x 3-3/8 inch tall. This mirror door roller assembly features snap-in bracket clips which are designed to lock into steel-framed door rails to hold the doors together. The wheel is constructed of durable plastic which provides for a smooth, long-lasting, quiet roll and it features a narrow 1/8 inch wide flat profile edge. This mirror door roller assembly mounts on the bottoms of sliding mirrored closet doors, it is adjustable once installed, and it is used by a variety of closet and wardrobe door manufacturers.