We have two different grades of framed chalkboard writing surfaces to choose from depending on your needs. You also have the option between aluminum and oak frames for your board. Composition Chalkboards are our most economical chalkboard. The composition chalkboard is favored as a restaurant menu board or specials boards in the supermarket because they look good and are economically priced. The composition board has a two-coat, painted chalkboard surface that is available in either green or black. This board is recommended for light or infrequent use. Porcelain steel magnetic chalkboards the most durable chalkboards made. These magnetic chalkboards are the best option for schools and institutions because they can stand up to everyday use and the abuse that a classroom environment can put on a chalkboard. Additionally the smooth porcelain steel chalkboard writing surface tends to create much less dust than a composition board or an old slate chalkboard. You can order professional porcelain steel chalkboards through customer service.