We love these Recycled Oil Drum Sculptures!! The designs are chalked out on flattened steel oil drums and then cut out with a mallet and chisel. This art form began in the late fifties with a blacksmith whose name was Georges Liataud. Many talented sculptors have since followed. These works are perhaps the most innovative in sculpture since Calder's Mobiles and grace such prestigious institutions as the Museums of Modern Art in Paris and New York. These sculptures are made to be used inside or outside. Outside they eventually do begin to turn a beautiful patina. Should you prefer the original finish, it is suggested taking it down every 18 to 24 months and spraying it with a clear gloss varnish. This can be found in any art store or hardware store. We recommend Krylon Crystal Clear. It also removes scratches. The painted pieces should not be used outdoors. Look for these in our Green Store.