Strathmore Bristol Vellum Paper Pad 11"X14" - Plate surface has an ultra-smooth finish that is unsurpassed for detailed work with technical pen, airbrush and marker. Vellum surface has a toothy finish that is excellent for pencil, charcoal, pastel and oil pastel as well as pen, airbrush, and light washes. Not recommended for traditional watercolor techniques. Manufactured with cotton fiber for enhanced surface durability and exceptional results. This package contains 15 sheets of 100% cotton bristol. Acid free. Archival quality. Made in USA.