2200 Series Fabric Dual-Hinge Folding Chair, Supports 500 lb, Royal Blue Sea, Royal Blue Back, Charcoal-Blue Base, 4/Carton Two U-shaped double riveted cross braces. Features 18-gauge 0.88" round tubular frame. Double hinges for added stability and durability. Unique full size double contoured back and waterfall seat. Scotchgarded fabric is rated to 30,000 double rubs. Powder-coated frame. Color coordinated V-tip stability plugs and polypropylene glides. Fabric and foam are Cal 117 Rated.Our Price Buys you: 4