48x72 3 Door Satin Alum Frame w/ Illuminated Headliner Enclosed Changeable Letterboard . Headliner Changeable Letterboards: When the need is to stand out from the crowd Enclosed Headliner letterboards are for you. Precision-grooved changeable letter back panels are covered with either felt for indoor models or vinyl for outdoor units. Letter panels are available in black blue brown or burgundy. Lockable hinged doors with shatter-resistant acrylic help make these wall mounted units a popular choice for schools churches hospitals and fraternal organizations. Headliners include a 6" high white acrylic header panel to clearly identify your organizationís name for all to see. Standard lettering on header is done in uppercase helvetica-style black letters and is sized and centered on the opaque panel depending on requested name. Available with an illuminated or non-lighted acrylic panel. Illuminated units feature U.L. Listed fluorescent fixture bulbs and a three wire electrical lead. These durable aluminum framed units can be ordered for either indoor or outdoor models. Select from your choice of bronze or satin anodized aluminum. A set of 3/4" letters numbers and characters is included. FREE SHIPPING!