Highlight important information and announcements. Reposition thumbtacks and push pins multiple times on the self-healing cork backing to hold papers on securely without making unsightly holes. Sturdy frame is suitable for any classroom or office decor. Built-in metal hangers allow you to mount either vertically or horizontally to suit any space. Silver Aluminum Frame. Board Type: Bulletin; Board Width: 24"; Board Height: 18"; Surface Material: Cork.