This Classic black felt covered board with an attractive aluminum frame is precision grooved on 1/4 centers to accept our universal quick change letters to create your own sign in minutes or change to suit your needs. Assembly: Assembled. Construction: Tempered Hardboard. Frame Color: Clear Satin Anodized. Frame Construction: Aluminum. Interior Color: Black. Type: Without Header. Surface Material: Felt Letter Board. Exterior Depth: 1/2 . Size: 12 W x 18 H.