The National Park sign is hand-fabricated from mild steel, and has been painted, distressed and rusted for a nice aged look. Can hang indoors or outdoors. All parks available. Please choose "Custom" from the style list if desired park is not listed. Dimensions: 15" x 14" x 1" Please note rust is a naturally occurring process and therefore the color & pattern will vary on each item. This product will continue to rust unless treated.