Dry-erase board features a porcelain surface that resists staining, ghosting and scratching to keep its bright, high-quality appearance through years of frequent use. Magnetic backing allows you to instantly post messages or attach your magnetic accessories. Four-corner mounting system can be positioned either vertically or horizontally to provide versatility when reconfiguring an office or where wall space is limited. Adjustable pen tray offers a convenient way to keep your writing utensils within quick reach. 18" x 24" dry-erase board is perfect for classrooms, offices, training environments, meeting rooms and more.