The Brustro Bristol paper features sheets of 250gsm, paper is produced utilizing hydroelectric power thus reducing greenhouse gas emissions into the atmosphere. Being an ultra-smooth surface is resistant to repeated erasure and scraping. Ideal for solvent based markers, felt tip pen, watercolor, ink, airbrush, pencil & charcoal. Perfect for illustration, design and manga. The bright white coloring makes for excellent contrast. Perfect for artists & apos; & armatures. The absence of acid guarantees its inalterability over time. Made in Italy. Available in 3 sizes. Brustro is a registered trademark of Creative Hands Art Materials Pvt. Ltd.