Canson Infinity Aquarelle Rag Fine Art Watercolor Paper, 8.5 x 11 Inch, White, 25 Sheets 100 percent cotton rag watercolor paper Mold-made and pure white without the use of OBAs Cold press, museum grade, internally buffered, and acid free paper The whiteness is controlled with natural white pigments to ensure the highest archival standards and age resistance 310 gram and 25 sheets of 8.5 x 11 inch per box