Size: 22x30" (560x760m)This top of the range fine white watercolour paper possesses a natural whiteness. It is mould made from 100% rag (cotton), has a neutral pH value making it acid free, has deckled edges (when in full imperial sheets) and is watermarked.Arches Watercolour Paper is available in NOT and Rough surfaces, and in a very heavy weight of 640gsm