Fabriano Accademia Drawing & Sketching Paper Pads is made of high quality lignin free and acid free cellulose, guaranteeing long conservation over time. Produced with 100% of E.C.F. pulp (Elemental Chlorine Free), F.S.C. certified (1996 Forest Stewardship Council A.C.) from forests responsibly managed respectful of environmental, social and economic standards. Its internal and external sizing renders it resistant to repeated erasures. It is recommended for artists and amateurs for sketching and drawing with charcoal, pencil and sanguine.