National Public Seating 800 Series Steel Frame Premium Light Weight Plastic Seat and Back Stacking Folding Chair with Double Brace, 480 lbs Capacity Folding chair with plastic 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, double-riveted front and rear leg cross braces, and double hinges on each side for stability Plastic seat supported by steel frame for strength Rear leg brace connects at feet to help reduce sinking into soft ground