This Winsor & Newton Bristol Board is 250gsm in weight and is bright white in colour. It has an extra smooth surface, making it ideal for finely detailed drawings and illustrations with pencil, technical pen, pen and ink and airbrush. 100% acid free and 100% woodfree to ensure long term stability, this Bristol Board has a strong surface for repeated working and erasing and is also suitable for light washes without risk of cockling. At 250gsm, it is also robust enough to withstand repeated erasing. Each pad contains 20 sheets.