Lyra Rembrandt Artist Drawing Pencils Extra Dark Carbon - With its high concentration of charcoal, the Rembrandt Special Carbon pencil is perfect for drawing areas of deep black shading. You can add firm black strokes to highlight important areas in your work. Use of fixative is recommended. The right balance between charcoal powders in high concentration, graphite and Carbon Black pigment in a minimum percentage with oils & waxes to increase the intensity of the black. Recommended for areas of deep darkness in your drawing. Combined with a white oil or dry pencil, it creates deep chiaroscuro effects in decisive contrast with the highlights. Carbon Extra Dark can be used on any type of paper due to the richness of its composition.