Graphitint Pencils by Derwent combine a subtle hint of color with the soft gray tones of graphite to provide a truly unique drawing effect. These versatile pencils offer a suggestion of color that may be blended to produce a wide array of deep, expressive hues. Graphitint pencils are water-soluble. When water is added, their color bes more vibrant and handles much like a watercolor pencil. Lighten or lift away color with a soft eraser or wet brush. Alternate working wet and dry for a variety of textures and layers of color. Graphitint Pencils are available in sets of 12 or 24. Size: 12ct.