Optional Removable Letter Panel compatible with ODCC enclosed Bulletin Board without headers, The black vinyl covered grooved panel accepts plastic letters with tabs positioned at 1/4"" centers, Letters are sold separately, Assembly: Assembled, Construction: Tempered Hardboard, Frame Color: Clear Satin Anodized, Interior Color: Black, Type: Without Header, Surface Material: Black Vinyl Letterboard, Exterior Depth: 1/2, Width: 30"", Height: 48"", SKU: AARC1481