Letraset 9.1 Aqua Marker, Set #2, Twin-Tip, 12-Pack Set of 12 twin-tipped markers that handle and perform like watercolor paints Colors provide rich and saturated hues, superior light fastness, and can be easily blended with water Package contains 12 markers, blending pen, How-To instructions, and convenient carrying case Non-toxic; conforms to ASTM D4236