REINFORCED FIBERGLASS MATERIAL; 19 INCH BASE WIDTH; 300 LOAD RATING IN LB; 300 LB LOAD RATING; PARALLEL BASE TYPE; 2 SECTION(S); 1-1/2 INCH FLAT D RUNG SIZE; SAFETY SMART. BRAND; APPLICABLE STANDARD ANSI A14.5, OSHA; RATING TYPE IA EXTRA HEAVY DUTY