Prime-Line D 1600 Sliding Door Roller Assembly with 1-1/2 inch Steel Ball Bearing Product Description This patio door roller is constructed from steel and has a diameter of 1-1/2 in. It comes affixed to an adjustable steel housing assembly. This roller is used on Harare and similar styled patio doors. From the Manufacturer This patio door roller is constructed from steel and has a diameter of 1-1/2 in. It comes affixed to an adjustable steel housing assembly. This roller is used on Harare and similar styled patio doors. Features Used by Harcar and a variety of sliding patio door manufacturers Plain back housing 1-1/2 in. diameter concave ball bearing roller Stamped steel housing and roller Rear adjusting screw A Phillips head screwdriver is required for Installation USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.