Made for true efficiency and stability, these National Public Seating 600 Series Heavy-Duty Plastic Folding Chairs Chairs feature a heavy-duty powder-coated 19-gauge tubular frame and a large contoured seat and backrest for your comfort. Two cross braces both in front and in back of the chairs offer added support. V-tip stability plugs provide added reinforcement at the frame's junction and replaceable glides prevent floor damage. Lightweight for easy transport, the folding chairs are stain-resistant and perfect for easy set-up and take-down, indoors or outdoors. Backed by a 10 year warranty.