36 Pack Dual Tip Watercolor Pen Set-Medium & Fine Tip, Water Based Coloring Markers, Rich and Vibrant Colors Perfect for Adult Coloring Dual Tip: Medium(1.2mm) tip for coloring , shading and blending, and Fine(0.6mm) tip for outlining and fine detail Perfect for any uses: Coloring Books, doodling, comics illustration and much more Full color spectrum from pale orange to black: 36 pack includes every color you want and you need Non Toxic: Ink is water based and unscented without any toxic vapors