The Cass Art watercolour pad contains 50 sheets of acid free smooth watercolour 300g papers. The 300gsm weight allows this paper to withstand heavy water washes when sized. Acid free & archival quality Internal sizing allows for an even absorbency of watercolours The smooth surface is perfect for fine detailed works. Not only is this a great surface for watercolours, it can also perfect for lino printing, block printing, screen printing or calligraphy. Available in A4 & A3 sizes. Weight 300gsm Sheets 50 Texture Hot Press (Smooth) Stocked in all our UK stores.