Marsh's Astron Magnetic Markerboard with Aluminum Frame is an affordable choice for your office. The porcelain-on-steel writing surface is easy to clean and resists scratching and ghosting – it even carries a 50-year warranty. The quarter-inch hardboard backing keeps moisture away from your board and helps prevent the writing surface from warping. The edges of your markerboard are protected by an attractive satin aluminum frame. Marsh's Astron Magnetic Markerboard includes an aluminum marker tray, four dry erase markers, an eraser towel and all necessary installation hardware.