Size: 30cm x 41cm .Canson Artist Series Montval Acrylic Pads feature a heavyweight, textured paper that stays flat and will not buckle.This paper is sized to provide the ideal level of absorbency for aqueous media and is ready to use with no need for gesso or other preparation.Each pad contains 10 sheets of 185 pound/400 gramme paper, acid free, 30cm x 41cm paper.