You can feel safe when climbing this Werner fiberglass extension ladder. Built with the exclusive Alflo® rung joint, a slip-resistant rugged shoe design, and external guides at the top of the base section to securely interlock rails, you wont have to worry about the ladder twisting or the feet slipping. Additionally, guide brackets improve the ladder' s durability and enable smooth operation of fly section. The ladder also has yellow electrically nonconductive side rails with pre-pierced holes for easy field installation of accessories. Compliance: ANSI A14.5.