Great Ideas Start Here. Plan, organize, collaborate, and share essential information and ideas with executive-style bulletin boards, whiteboards, calendar boards, easels, markers, art accessories and more from Quartet. Quartet Characters for Magnetic Letter Boards create well-aligned, easy-to-read messages on Quartet magnetic letter boards. surfaces for easy-to-update displays. Each set includes 128 characters in Helvetica font with bold, raised white lettering for clear readability on black backgrounds. Proportionally spaced letters with molded grooves align straight and even for precise communication. Quartet products are the tools you need to communicate more effectively from the conference room to the classroom to your personal workspace. Turn your thoughts into action. Make a lasting impression.