1.Aluminum step Rescue ladder, escape rope 2."V" centre support-free hook width ... 3.Easy for repacking 4.Compact storage size Escape Ladder, Fire Ladder, Emergency Rope Ladder, safety rope ... : Aluminum alloy, strong durability belt, steel tube etc.Great strength-Load rating 450KG, can be used by up ... for storage. Emergency rope ladder, Rescue Ladder, Fire Escape ladder, EN131