£126.95 10ft X-it Rigid Fire Escape Ladder:The 10ft X-it Fires Escape Ladder is probably the safest portable fire escape ladder in the world. Its semi-rigid design of inter-locking sections stops the ladder from swaying and swinging. The steel rungs have stand-offs that keep the feet safely off the wall. The adjustable hooks fit over most walls and can even be used if there is a radiator on the inside of the wall. The solid hooks also offer a good handhold.