Amazon.com : Excelsis Design 15 Pack Foam Board 24x36 Inches | Black Foam Board 3/16 Inch Thick Black Core Mat | Backing Board for Presentations, Signboards, Arts, Display and Crafts with Double-Sided
24 x 32 Prints on 3/16 Foam Core
24x36 White Foamboard 3/16" Thick - Sam Flax Atlanta