National Public Seating 1300 Series Steel Frame Upholstered Premium Vinyl Seat and Back Folding Chair with Triple Brace, 480 lbs Capacity, Warm Gray/Gray (Carton of 4) Folding chair with vinyl upholstered seat and backrest and steel frame for temporary seating and efficient storage when not in use 18 gauge, 7/8" tubular steel frame supports 480 lb. static weight, 300 lb. drop weight "Y-frame" structure, three double-riveted leg cross braces, and double hinges on each side for stability Vinyl upholstered seat and backrest for comfort, with 1-1/4" thick, 0.9 lb. density foam in seat and 1.2 lb. density foam in backrest 0.8 mm thick vinyl is water resistant for easy cleaning