Are you having trouble sliding your screen door open or closed? Have you checked your rollers/roller assemblies? Don’t replace the entire door. For a fraction of the cost of a new door, replace those worn-out rollers. This sliding screen door assembly is made from a steel housing and spring-loaded arm with the 1 Inch steel high density polyethylene roller attached is used by Bay-Mills as well as a variety of other patio door manufacturers. The roller arm is spring-loaded and adjusted by the adjustment sleeve and screw on top. Order yours today and have your door slide like new.