Canson-Bound Watercolor Pad. The Canson XL range was developed to delivery papers made with recycled content using sustainable practices without sacrificing quality. The paper provides durability, erasability and smudge-resistance. Acid free and lignin free, last without deterioration or yellowing, made without chlorine. This package contains one 11×15 inch drawing pad with thirty sheets of 140 lb, cold press, durable surface watercolor paper.