Superior corrosion resistance electropolished stainless steel. Easy boarding for swimmers or divers with fins and heavy gear. 1-3/4" diameter center post design with angled mount for stair-like usability. Heavy duty - rated at 400 lbs. boarding weight. Comfortable non-skid step surface. Designed for all vertical, horizontal and breakaway mounting hardware options not (included). Stainless steel quick release transom mounting bracket (99180) included. Optional storage brackets (99196) available. 14.5" width.