The Event Series Ventilated Back Folding Chair has a Polypropylene seat back that provides durability. There is a double-riveted cross brace on the rear legs for stabilization. The frames are powder-coated. It is able to ship via small parcel. There are 8 chairs shipped per carton.Finish Black Paint, Black PolypropylenePolypropylene seat and back provides durability. Double-riveted cross brace on rear legs for stabilizationPowder-coated frames8 Chairs shipped per cartonPolypropylene seat back provides durability. Double-riveted cross brace on rear legs for stabilization