Sketchbook Beta Mixed medium Blue Stillman & Birn 14x21cm Beta series padded notebook for multi-technique drawing. One of the three thickest papers in the range, the Beta series allows artists to dip their sketchbooks in water or pigment and explore bold new techniques. Extra thick fine grain 270g/m2 paper with white dye. Perfect for dry and wet techniques, ink, watercolor and multi-techniques. Flexible and soft covers to take it on the road. Color: navy blue. 26 sheets of paper (52 pages). Acid-free, neutral pH. Size: 14x21.6 cm. Brand: Stillman & Birn