Watercolor pad - 100% cotton - 140lb - rough - 9x12in (20s)

Professional grade watercolour paper blocks that are glued on all sides. Formats are ideal for outdoor painting. 100% cotton Cylinder mould made  Rough grain, cold pressed 140 lb (300 g/m²) Acid free Buffered with natural gelatine sizing for protection against environmental acids Contains an anti-microbial agent to resist mildew Made without optical brightning additives Perfect for watercolours, ink, gouache, and acrylic