This is a professional-grade aluminum extension ladder. It features a lightweight, rustproof frame configured into a two-section sliding mechanism.Key HighlightsHeavy-Duty Construction: Built with robust aluminum side rails and horizontal slip-resistant climbing rungs.Rope and Pulley System: Outfitted with a central white guide rope and integrated top pulley to seamlessly raise or lower the fly section with minimal physical strain.Gravity-Fed Safety Locks: Equipped with spring-loaded metal rung locks to securely lock the extended height into place and prevent accidental slipping.