Prime-Line Products N 6599 Mirror Door Roller Assembly， 1-1/2 in.， Plastic Wheel， Ball Bearings， Concave<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Used by Monarch Door Company on "500" series aluminum-framed sliding mirror closet doors</li><li>1-1/2 in. outside diameter wheel in 1-3/4 in. x 1/2 in. x 3 in. assembly housing</li><li>Concave edge wheel (center grooved)</li><li>Constructed of a plastic wheel with steel ball bearings， assembled in an extruded aluminum housing</li></ul></div><img src="http://ecx.images-amazon.com/images/I/417bdxy0wJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41F2ZeT73%2BL.jpg" noproxy>