Grafix Dura-Bright is a pH neutral Polypropylene film for mixed media. The smooth, non-absorbent black surface is ideal for acrylic, pencil, alcohol ink, stamping, due-cutting and even sewing. White gel pen, metallic, iridescent and neon colors show up great! The .01 heavy weight sheets are also heat resistant and wipeable for reuse. This pad of 11x14 inch Dura-Bright in black has 12 sheets. Made in the USA.