Versitile extension ladder with strong 250 lb. capacity Ladder can be adjusted from 20 ft. to 40 ft. for optimal use Twist-proof climb by exclusive Werner ALFLO rung joint for safety The Werner 40 ft. Aluminum Extension Ladder allows you to safely and securely reach high places such as second story windows and the roof. Designed with safety in mind, it features slip-resistant rungs and the exclusive ALFLO rung hoist for twist-proof performance. Mar-resistant end caps offer protection for the wall and ladder, while the adjustable height reaches from 20 ft. to 40 ft. to accommodate a wide range of projects. Aluminum frame provides a strong, sturdy structure 40 steps offer access to hard-to-reach places 250 lbs. duty rating is ideal for light household appl.