Built to last, the Werner 375-pound duty rated 7404 Fiberglass 4 ft Step Ladder is rugged and ready for the job. This ladder features extra heavy duty aluminum HolsterTop, internal spreaders and external rail shields for long lasting durability. With The Edge® bracing system and GLAS*MARK® Violator stripes on the rails, the 7400 series is built to handle the work site and stands ready for tough jobs. Fiberglass rails are non-conductive for working near electricity.