Display messages outdoors Satin Anodized aluminum frame Lockable doors mounted on full-length piano hinges (two keys included) Shatter-resistant, acrylic windows Self-sealing, natural cork interior Weather resistant aluminum backing with silicone sealant Illuminated units lit from top For mounting non-illuminated boards on posts, please call for quote Must be installed in a protected/shielded area Ask about adding our Drip Edge and door seals to help keep rain out. Case Dimensions: 1 wide main frame 1 7/16 inch wide door frame 2 inch exterior depthResilient self-healing all-natural cork. Satin-finished, wrap-around aluminum frame. Dense fiberboard backing. Board Type: Bulletin; Board Width: 24"; Board Height: 18"; Surface Material: Cork.