Strathmore 400 Series watercolor paper is popular with watercolorists of all levels. This felt finished paper has a strong cold press surface which allows lifting and scraping applications and is ideal for mastering watercolor techniques. Excellent for finished artwork with watercolor and gouache, these sheets can also be used for acrylic, oil, airbrush, mixed media/collage, drawing, oil pastel, pen and ink, and marker. This spiral-bound pad contains heavyweight paper with two deckle edges. Details:Available in multiple sizes140lb/300gsm12 sheets (15 sheets for 12" x 18")Spiral boundCold pressAcid free paper