The quality of Roco's water soluble crayons is globally recognized. Its excellent lightfastness, high pigment concentration, and ability to adapt to a variety of techniques put it in a class of its own. Roco Water Soluble Crayons are softer than colored pencils, denser than children's crayons, and quick to respond to a wet brush. Wet and dry techniques can be combined in the same drawing. Because of its strong pigmentation, light colors cover dark colors and vice versa. Roco water soluble crayons are soft enough to smudge with your fingertips, yet much stronger than oil pastels. Scrape one or more layers of color to create an etched sgraffito effect. It can also be combined with colored pencils. And best of all, it is soluble in water.