The plastic body clamps over the rope and cleans it with a combination of water pressure and brushing action. The inside is lined with AstroTurf, which scrubs the rope as it is pulled though the washer. The PVC housing is made with a flexible vinyl hinge co-extruded for longevity. Hook-and-loop fasteners adjust for different rope and hose diameters up to 3/4 in (19 mm).