Easy to use fire ladder - attaches quickly to most common windows (up to 11 inches deep & 16 inches wide) before rungs are released - works on casement windows No assembly required Flame resistant, durable & sturdy, foldable ladder - tested to 1,000 pounds Tangle-free design for fast & easy deployment in an emergency High quality, zinc-plated, 1-foot wide, anti-slip rungs for secure footing & a confident descent Rails are constructed of red nylon straps for a secure grip Single use only - discard when unfolded or used 5-year limited manufacturer warranty Easy to use attaches quickly to most common windows Tangle free design fast and easy to deploy with anti-slip rungs Ready for use no tools or assembly required Strong and durable ladder tested to 1000 lbs. No assembly or tools are required; 5-year warranty