Arches Watercolour Paper are with 100% cotton 640 GSM - 31 cm x 41 cm or 12' x 16' - Fineearance of mould, Sheets have two natural deckle edges, two torn deckle edges and are watermarked and embossed. Permanent in accordance with ISO 9706; Ideal for watercolour painting, as for all wet techniques such as ink, gouache and acrylic. Manufactured with advance printmaking technology with traditional techniques; has a look and feel of vintage handmade paper; strong enough to handle multiple washes of colours without damage to surface.