The Strathmore 500 Series Ready Cut Watercolor Cold Press Papers are standard sized sheets for ready-made frames and mats perfect for your watercolor creations. Saving you time and money and making framing easier and less expensive, these standard size sheets are ideal for intermediate to advanced watercolorists. The Strathmore 500 Series Ready Cut Watercolor Cold Press Papers utilize a harder size and surface strength to provide greater water hold-out, improved color lifting, and blending. This paper is 100% Cotton, acid free, and archival.