140lb (300gsm). Cold Pressed. Priced for students and beginners, this machine-made, acid-free cotton/alpha cellulose watercolor paper is excellent for watercolor, gouache, acrylic, ink, charcoal and greeting card design. Machine-made from 25% cotton and 75% alpha cellulose, Optimal absorbance, Will hold up to vigorous painting.Feels like 100% cotton rag.