smooth matte card stock. Great to use with markers, crayons, colored pencil, pastels, pens and more. These Hadestown themed coloring postcards come packaged in an acid free clear sleeve for protection, and include a cover page showcasing 4 designs that can be used for coloring medium testing. Inspired by Broadway, Colored by YOU! Get out your cast album, grab your colored pencils or makers and get coloring! Take the time to relax and get mindful while personalizing your own creations! You can collect the entire Coloring Broadway series, use them as gifts, bookmarks or frame them as home or office decor.