Set Includes: 1 each 2B white, B black, sanguine natural and bistre crayons. Colour Crayons, also referred to as Conté à Paris carrés, are harder than pastels or charcoals. This hardness creates crisp, tight lines rather than the more smudged look of pastel and charcoal. They are produced from a highly rigorous choice of pigments, clay and a binder. They are then baked after being extruded and dried.