Prime-Line 1 Inch Convex Nylon Roller Wardrobe Door Roller Assembly (Front) 2-Pack N 6512This is a single wheel; top hung, side mounted adjustable roller bracket with a 1 in. convex nylon roller that fits onto the front wardrobe door panel. The stamped steel adjustable bracket has a 1 4 in. offset and fits onto a 3 4 in. to 1 3 8 in. thick door. Primarily used on Cox door systems, it may also be found on a variety of other wardrobe door manufacturer's doors. Fits on the front wardrobe sliding door Used on Cox wardrobe doors 1 4 in. offset