These sketch books feature 110gsm, slightly-textured paper that is suitable for sketching and drawing across all dry media like charcoal, graphite or colored pencils. The paper is acid-free and FSC certified and sourced from responsibly managed forests. Spiral-bound sketch books contain extra-white paper and hard-bound books contain natural white paper. Ideal for use in studio or on-the-go, these sketch books have 80 sheets that are micro-perforated along the edge for easy removal. Brand: Winsor & Newton