Clairefontaine Cray'On pads contain 120 or 160gsm, extra-white paper made from 100% cellulose. It features a light grain on one side and a smooth finish on the opposite. An ideal surface for working with multiple techniques. Cray'On is best suited to sketching and drawing and the 160gsm will also readily accept ink and gouache. The sheets are archival and acid-free and possess a high resistance against scraping and repeated erasures.