PRIME QUALITY EGRESS LADDER: ladders are made of high grade corrosion-resistant aluminum, strong and durable. Suitable in all weathers, ideal for humid environment for long-lasting use; EASY INSTALLATION: Fire ladder come in compact box allows for an easy load for going directly to a job-site. Quick assembly and easy to fix to the wall. Taller ladders are possible by just lining up and butting two or more ladders to achieve the desired height;