These blocks of watercolor paper are excellent for all wet techniques including gouache, pen & ink, colored pencils as well as traditional watercolor. Available in Hot Press which is smooth as well as Cold Press and then Rough which are progressively more textured. Blocks differ from pads in that they are bound on all four sides to help eliminate the need for stretching. Great for traveling watercolorists! Choose from Strathmore, Arches & Fabriano.