National Public Seating 2200 Series Steel Frame Upholstered Premium Fabric Seat and Back Folding Chair with Double Brace, 480 lbs Capacity, Black/Black (Carton of 4) Folding chair with fabric 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, double-riveted front and rear leg cross braces, and double hinges on each side for stability 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, covered with fabric abrasion tested to withstand 30,000 double rubs for durability under heavy use Fabric treated with Scotchgard stain and water repellant to protect appearance