The 7304 fiberglass 4 ft step ladder has a duty rating of 375 lb and features heavy-duty aluminum HolsterTop. With a full set of horizontals and heavy-duty internal spreaders, these ladders are built for the long haul. The molded external rail shields and the EDGE bracing system help decrease damage to the rails. The slip-resistant Traction-Tred steps are single riveted and have extra wide knee braces. The GLAS*MARK Violator stripes increase the visibility of the ladder on the jobsite. Fiberglass rails are non-conductive for working near electricity.