Prime-Line B 715 Side Adjustable Screen Door Tension Spring Product Description This screen door roller is constructed from nylon. It features an adjustable design that fits on Anderson Doors. It comes complete with fasteners for a quick and easy installation. From the Manufacturer This screen door roller is constructed from nylon. It features an adjustable design that fits on Anderson Doors. It comes complete with fasteners for a quick and easy installation. Features Used on Andersen Narroline, Frenchwood and Perma-Shield screen doors Adjustment is made from the edge of the door 1-1/4 in. concave roller High-density white polyethylene Easy snap in installation No hardware needed 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.