Canson Universal Sketch books are thick, wirebound sketch pads with 100 sheets each—plenty of room for experimentation and rough sketches. The paper has a fine texture and versatile surface for a variety of dry media. It's particularly good with pencil. It has excellent erasability and is smudge resistant. The pads are constructed with durable double wire, and the sheets are micro perforated and true size. Acid free. Made in the USA.