Langton Rough Surface Water Colour Block from Daler Rowney, featuring 12 sheets of 300 gsm mould-made watercolour paper. The paper is acid-free and glued on all four sides. Available in multiple sizes: 12" x 9", 10" x 7", 14" x 10", 20" x 16", and 16" x 12". The Langton premium rough, 300gsm, watercolour paper is mould-made, acid-free, natural white, and sustainably sourced certified. It is fade-resistant and archival quality, internally and externally sized with synthetic sizing. This versatile paper offers superior performance for watercolour and gouache, and also works well with acrylics, inks, and various dry media. It is an excellent choice for professional artists.