Developed for both wet and dry applications, Marabu Art Crayons are a wax based, highly pigmented, water soluble pastel. Extend and retract the Crayon with a simple twist of the lipstick-like holder. The product is very, very soft and smooth and blends easily with your finger on a gessoed surface. Work directly on paper and you can still blend the color, though not quite as much. Manipulate what you have put on the surface with a wet brush or finger. Clean up with water or a baby wipe.Available in open stock colors and themed sets of 4.