Winsor & Newton willow charcoal is of the highest quality and carefully selected for uniformity without imperfections. Specially prepared for artists' use, the wood is correctly baked to produce an even line of consistent intensity. Willow charcoal produces a velvety, black line. Winsor & Newton Charcoal is an artists' staple for use on vellum, newsprint, or any fine drawing paper. Available in a variety of sizes and packs.