National Public Seating's Model 300 folding chair offers more support without adding much cost. It features a tubular-steel frame and three riveted cross braces for extra strength. The seat has a waterfall front, and the full-sized back is double contoured for added comfort. A double hinge per side links the front and rear legs. Comes with color-coordinated glides and leg stabilizer plugs. Available in five colors. Must be ordered in multiples of 4.