Our Fire Escape Ladder was designed by a firefighter so it's extra-safe. It's also a must for every multi-level home. Unlike conventional chain style ladders it unfolds instantly, without any tangling. Just hook the handles onto the windowsill, pull open the Velcroå¨ cover and you can make a quick exit. The ladder becomes rigid when stepped on so it won t sway, and there are special "stand-offs" and wide, anti-skid steps for safer footing. Aluminum and plastic construction make it lightweight and easy to handle. Glow-in-the-dark strap aids visibility at night. Stores under the bed or in a closet. Extends to 12' and holds up to 600 lbs. Model #1650 Two-Story Ladder has two stationary steps at the top. Model #1625 Two Story Ladder has one stationary step at the top.