Canson's Mi-Teintes papers are recognized world wide as the preferred papers for pastel, drawing, and paper craft. These gelatin-sized papers are 50 percent cotton, and resistant to fading. All colors are acid free guaranteeing longevity. The paper is dual-surfaced: one side with a heavy texture and the other with a lighter texture. Mi-Teintes is a light-fast paper that is colored at the pulp level. This pad is made 98 pound/160 gram paper.