Portable emergency escape Life Ladders store easily for quick access in an emergency. Fits up to 9 1/2 inch walls without the use of screws, bolts or brackets. Just hang the brackets over the window sill, toss out the ladder and climb down. 6 5/8" standoffs keep the ladder away from walls, allowing for easy descent. Ladders available in 2 sizes: 13' and 25'