Strathmore 500 Series Ready Cut Watercolor: Standard size sheets of 140lb Strathmore 500 for readymade frames and mats. Available in cold or hot press. Saves time and hassle, and makes framing easier and less expensive. This paper is harder sized than 'old world' papers giving it excellent surface strength. Recommended for intermediate to advanced watercolorists, it provides greater water hold-out, improved color lifting and blending. 100% cotton, acid free, archival.