Steel: Grinded stainless steel 304 Stainless steel 304, powder coated according to RAL colour standard Grinded stainless steel 316 Galvanized steel, powder coated (Qualisteelcoat certificate) according to RAL colour standard Corten steel Wood: Exotic IROKO wood finished with colored/colorless oil Glued wood (available only in oiled 227 Palisander version)