ZNB1073 Features: * Extension ladder * 250 lb duty rating * 3-1/4"" non-conductive fiberglass side rails with non-irritating fabric outer mat assures a smooth trouble-free surface even after weathering * Direct rung to rail connections with exclusive patented Alflo rung joints * Non-marring, yellow molded end caps and rail closures * External guides on top of base section and internal guides on bottom of fly section securely interlock rails * large, smoothly operating extruded gravity/spring locks with spring activated gray super tough nylon flipper * Polyethylene rung wear sleeves * Heavy duty aluminum extruded pulley with 5/16"" blue and yellow polypropylene rope Dimensions: * Traction-Tred 1-1/2"" deeply serrated aluminum flat steps