These acid-free black matboards are a perfect backdrop for presentations, student artwork, and for do-it-yourself matting and framing projects. Available in convenient 40-count school packs and in a variety of sizes, have a black surface paper, a cream core, and a white lining paper. - Crescent Black Matboard, 9" x 12" School Class Pack, Pkg of 40Crescent Black Matboard Packs, 9X12 40/PK -