This daniel smith fine watercolor paint stick in serpentine genuine gives you the same rich vibrancy of daniel smith watercolor paints in the size and feel of an oil pastel the sticks may be used when wet or dry to build intensity and texture for sketching and building layers into your finest watercolor work daniel smith extra fine watercolor sticks are essential each stick is 3 inches long and 38 of an inch thick an excellent choice for the professional watercolorist