Dry-erase board features a double-sided design that can be flipped over for twice the life. Four-corner mounting system can be positioned either vertically or horizontally to provide versatility when reconfiguring an office or where wall space is limited. 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.