Fits on Contractors Wardrobe Door Company C.R. LAURENCE N6598 CRL 1-1/2" Nylon Wardrobe Door Roller for Contractors Wardrobe. This CRL Wardrobe Roller has a 1/2 inch (12.7 millimeter) wide, adjustable aluminum housing bracket with a "T" shaped extruded boss and a 1-1/2 inch (38.1 millimeter) diameter, nylon ball bearing wheel. This unit fits on Contractors Wardrobe Door Company doors.. Part Numbers Variations: N6598