"THESE PORTABLE EMERGENCY BOARDING LADDERS ARE MADE OF HIGH-VISIBILITY ORANGE POLYCARBONATE WITH NYLON ROPE SUPPORTING THE FRAME. EACH STEP HAS A MOLDED IN NON-SLIP GRIP PATTERN. THE LADDERS SECURE QUICKLY TO CLEATS, RAILINGS, STANCHIONS AND HALYARDS AND WILL SUPPORT UP TO 300 POUNDS."