Werner 16 ft. Fiberglass Extension Ladder is an extra heavy-duty professional use ladder designed for durability and safety. It features external guides at the top of the base section that securely interlock the rails, ensuring stability during use. The base and fly sections separate easily, allowing the base section to be used as a single ladder. Internal guides on the bottom fly section also securely interlock the rails. The ladder is equipped with slip-resistant Traction-Tred 1-1/2 inch flat D-rungs for safe footing. Its durable rail shield bracket and shoe include a Shu-Lok slip-resistant pad and spur plate, along with an exclusive Alfo rung joint that provides twist-proof performance. The fiberglass rails are electrically non-conductive and finished in bright orange for visibility. This ladder does not include a rope and pulley system. It is important to avoid storing fiberglass ladders in direct sunlight, as ultraviolet rays can weaken the polyester resins over time. This ladder supports a load capacity of 300 pounds and carries a Type IA duty rating, making it suitable for demanding professional tasks. Model Number: D6216-2