prismacolor premier non-toxic water soluble watercolor pencil set44; set 12 prismacolor prismacolor premier watercolor pencil set in assorted colors feature artistic quality leads of finest water soluble pigments that offer rich color saturation and strong lightfastness properties. clear strokes drawn with color pencils can produce an amazing watercolor effect with the use of wet brush. pencils come packed in a metal box and are 12 per box.