The Maruman Art Spiral Sketchbook series is a vibrant, high-quality drawing pad designed for artists, students, and creatives who want both function and style in their art supplies. Featuring Maruman s original thick 156.5g/m² drawing paper, this sketchbook offers exceptional durability and versatility, making it suitable for watercolors, colored pencils, crayons, pastels, pens, and mixed media artwork. Each sheet is acid-free to ensure excellent preservation of your sketches and paintings, maintaining the richness of your colors over time without yellowing. The paper s ideal thickness and lightly textured surface provide superior control for smooth blending, layering, and erasing without damage. Its colorful and durable polypropylene walnut-textured cover, paired with two-toned spiral binding that matches the notebook design, adds a stylish touch while protecting your pages from wear.