Horizontal Line Board, Anodized Aluminum Trim, 4'H x 8'W. Low gloss porcelain dry erase surface provides superior writability and erasability with no ghosting. Reduced surface light distortion enhances visibility to provide optimum eye comfort. Steel surface is permanently laminated to a particle board substrate for stability and durability. Anodized aluminum trim has a 7/8" profile with hairline mitered corners. Includes a full-length tackable map rail with a colored cork insert, and a full-length accessory tray with rubber Dura-Safe end caps to eliminate sharp edges.