Comfortable 1200 Series Premium Vinyl Upholstered Folding Chairs are made with the combination of durable vinyl wrapped over 1.25 inch of soft foam on NPS's most popular frame. These institutional-grade chairs feature a unique full-size double-contoured backrest, upholstered and firmly secured to the frame with six rivets. The powder-coated steel frame made from heavy-duty 18-gauge round tubing and two U-shaped double-riveted cross-braces - one in front and two in the back - to securely support the double-hinged legs. Color-coordinated V-tip stability plugs provide added reinforcement at the frame's junction and matching replaceable glides prevent floor damage.