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 11x15 inch drawing pad with thirty sheets of 140 lb, cold press, durable surface watercolor paper.