Folding Ladder - 4 Step. These portable emergency boarding ladders are made of molded-in, high-visibility orange polycarbonate (plastic) with nylon rope supporting the frame. They secure quickly to cleats, railings, stanchions and halyards and will support up to 300 pounds. Features include a foldable design for compact storage and portability. Step Count: 4 Step. Construction: Plastic. Package dimensions 13 x 10 x 4 inches; package weight 2 pounds. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.