Professional grade watercolor of the highest quality. 100% cotton fiber allows the paper to absorb a lot of water without warping or causing the colors to bleed. Cylinder mould made and sized to the core with natural gelatin so it can be scratched without tearing or linting. This sizing also prevents paint from penetrating into the paper allowing light to shine through the pigment and ensuring the durability of the colors. Flawless textured surfaces of cold press hot press and rough with deckle edges. Registered watermark. Acid free with alkaline reserve no optical brightening agents and an anti-microbial agent to prevent the appearance of mold. Available in sheets rolls blocks and pads. Use for watercolor pencil gouache and acrylic.