The ChefMaster marker boards are perfect for the daily specials that commercial operations serve. The boards come included with 5 rain proof markers of different colors. These boards are reversible so that one side has a black surface and the other a white surface. The can be hung either horizontally or vertically. Made with a durable 5-4/5-inch aluminum frame with 304 stainless steel hardware for indoor or outdoor use. 18-Inch by 24-inch.