Make your Artwork is so much easier with this Coloring brush pen set, anywhere, anytime. Achieve fine, medium or bold brush strokes by changing the pressure to the nib. The durable tip quickly springs back to the original shape, stroke after stroke. The odorless, water-based solvent facilitates smooth blending and layering of colors. The dye-based inks blend easily to create a multitude of color hues. Compact pen length (140mm) is convenient for on-the-go artists. The special “blender” pen creates seamless washes and color gradations. (Available separately) AP seal certified. Great for Students / Graphic Artists / Designers / Illustrators / Architects / Cartoonists