4' x 8' 3M P9648A Dry Erase Whiteboard with aluminum frame... Dry-erase board offers a durable porcelain, magnetic dry-erase surface that erases quickly and easily without ghosting. Aluminum frame has a wide-screen style. Design also includes a galvanized steel backing. Install with included mounting brackets and Command Picture Hanging Strips to stabilize the bottom. Frame is securely fastened using screws for durability. Dry-erase board includes an accessory tray that snaps easily into place.