Spacing:40Cm.They Can Be Attached to Window Railing Ore, Roof, Balcony Railing, at Home, in Tree House, Office, School, Hotel and Residential Building. Sturdy Andng:Fire Rope Ladder Made of 20Mm MultiStrand Polypropylene Steel Wire Rope and 41Cm Elm Wood Rungs.Round Wood Pedal Diameter 35Mm. MultiPurpose:Our Fire Escape Provides a Safe and Convenient Way to Escape to Avoid Emergencies. It is Suitable for Fire Fighting, Emergency, Lifeline, Lifesaving, Etc. 9 Size:We Know You May Need Different Sizes to Meet Different Needs That's Why We Offer You Nine Sizes for Your Choice. Choose from Our3 Meters/9Ft,5M/16Ft,6M/19Ft,8M/26Ft,10M/32Ft,12M/39Ft,15M/49Ft,18M/59Ft,And 20M/65Ft Ladders! Our emergency escape rope ladder is made of high-quality polyester material. It is sturdy, durable, and reusable, with rain-resistant and tear-resistant properties, and can support a weight of up to 907 kg (2,000 lbs). Thanks to its compact and lightweight design, this outdoor climbing ladder is easy to carry and store. It can be placed under a bed, inside a closet, or hung by a window without taking up much space. It is also lightweight, making it easy for even children to carry and use.