Brustro Sketching & Drawing papers is made of high quality lignin free and acid free cellulose, guaranteeing long conservatione over time. Produced with 100% of E.C.F. pulp (Elemental Chlorine Free). Its internal and external sizing renders it resistant to repeated erasures. It is recommended for artists and amateurs for sketching and drawing with pencil, charcoal, pastel, coloured pencil and ink. It is also suitable for gouache. Brustro is a registered trademark of Creative Hands Art Materials Pvt. Ltd.