The National Public Seating 1200 Series steel frame upholstered premium vinyl seat and back folding chair has a black, 18 gauge, 7/8" tubular steel "Y-frame" structure, caviar black upholstered vinyl seat and backrest, double-riveted front and rear leg cross braces, double hinges on each side, and it folds for efficient storage when not in use. This chair meets the American National Standards Institute/Business & Institutional Furniture Manufacturers Association (ANSI/BIFMA) standard for drop weight support of 300 lb., and it supports 480 lb. of static weight. It has double-riveted front and rear leg cross braces and double hinges on each side for stability. The seat and backrest are upholstered for comfort, with 1-1/4" thick, 0.9 lb. density foam in the seat and 1.2 lb. density foam in the backrest, and covered with 0.8 mm thick vinyl that is water resistant for easy cleaning. (A15-184)