Daler-Rowney’s Langton Prestige Watercolour Blocks are the highest-quality products in their popular Langton range. They’re 100% cotton, made the traditional way on a cylinder mould machine, and are soft to the touch with a natural whiteness. They’re acid-free, with an alkali reserve to preserve your work and protect against discolouration and have a gelatinised surface for strength and resilience. These Rough blocks have a highly textured surface, best suited to expressive work. We sell Daler-Rowney The Langton Prestige Watercolour Blocks in the Rough version in 14in x 10in size. Each contains 12 sheets of 300gsm paper. Weight 300gsm Sheets 12 Material 100% Cotton Texture Rough