Seat/Back of chair:Mould-pressed with high-density plywood,beautiful outlook,fade resistant,resistance to deformation.Steel stand:Mould-pressed with high quality steel plate,steel plate thickness>1.5mmFoam:High density ultra soft cold-moulding foam for seat and back.Fabric:Premium specific cloth,fade resistant,anti fouling.Armrest:oaken or beech armrest.Armrest frame:HDF plywood do the painting on the appearance.Writing pad:Aluming post,MDF materialAuditorium chair,theater chair,hall chair