The Winsor & Newton Bristol pad is an extra smooth, bright-white strong surface ideal for repeated working and erasing. It is acid free and made using FSC certified pulp to protect forests It is an excellent smooth surface for fine detail drawings and illustrations using materials such as pencils, technical pens, fineliners, inks, graphic markers and airbrush. Paper Weight 250gsm Pad contains x20 sheets Paper texture: Extra smooth Available in sizes: A4 (21 x 29.7cm / 8.3 x 11.7 inches) A3 (29.7 x 42cm / 11.7 x 16.5 inches) A2 (42 x 59.4cm /16.5 x 23.4 inch)