This welcome sign is made of 18 ga steel. The hand-polished surface of the metal is colored by various chemicals and also metal dyes. After the color is complete, the piece is sealed with a clear coat of paint. The translucent colors change and move with the light as it reflects from different areas of the shining metal. This wall art/welcome sign is approximately 18 and 1/2 inches tall and 12 and 1/2 inches wide. Note: The stock photos are both of the same piece.