Using a special deep-firing method, Cretacolor creates a dense, rich charcoal. Develop large scale value drawings or mix with water and a binding agent for additional tonal effects. Erases with a kneaded eraser. Highly pigmented and lightfast. Fixative must be used on the final artwork. Glides easily, smudges, blends, rubs off like chalk. Suitable for wet or dry techniques on paper or canvas.