ZNB1103 Features: * Extension ladder * 300lbs duty rating * Mar-resistant molded end caps * Pre-pierced holes for easy field installation of accessories * External guides at top of base section securely interlock rails * Heavy duty pulley with rope * Direct rung to rail connections * Interlocking side rails * Slip-resistant Traction-Tred D-rungs * Base and fly separate easily to use base section as single ladder