Res-Q-Ladder emergency portable escape ladder is a 15 foot steel chain/rung ladder with plastic sleeves. The plastic sleeves make the ladder tangle-free. Ideal for use by children or older adults. It is tension tested to over 1,000 pounds. It can easily and quickly be deployed and is stored in it"s own corrugated case. Ideal for all 2 story homes,condos and apartments. Fits window sills up to 10 inches wide.