Daniel Smith Extra Fine Watercolor Sticks offer the same superior intensity as the Daniel Smith line of Extra Fine Watercolor paints with the convenience and portability of half pans. Each stick is packed with pure pigment and produces vibrant strong color when wet or use them dry to build texture. They’re highly reactive with water and release rich creamy colors. Opaque and cool. A very intense classic black velvet. It is a sooty by-product of burned mineral oil and tar. Use to darken transparent pigment.