Your announcement or listing will stay secure behind shatter-resistant hinged doors that come equipped with disc tumbler locks. An attractive letter panel with its precision grooves for easy letter insertion provides a long-lasting background for your messages. A set of 3/4" letters, numbers and characters is included. For outdoor usage, be sure to select our special unit with its vinyl letter panel, weather-resistant backing and durable aluminum framing. Letter panels are available in your choice of black or burgundy. Interior depth 1 ¼”. Overall depth 2 1/4".