Fabriano Artistico Traditional White Watercolor Block 140lb 9" x 12" Hot Press is mold made of 100% cotton that is chlorine and acid-free, guaranteeing long conservation and stability over time. The paper is sized both internally and externally, making it ideally absorbent. The brilliant extra white paper is not bleached and is watermarked “FABRIANO+ARTISTICO” on the short side. This high-quality watercolor paper satisfies the demanding requirements of all professional artists. The paper is ideal for watercolor, tempera, gouache, acrylic, ink, charcoal, graphite, and drawing.