Wolff's carbon pencils and carbon sticks combine the advantages of graphite (silky smoothness and sharp lines) with those of charcoal (velvety rich black lines) without easy breakage and excessive smudging. Using the pencils in this set the artist can create effects from light shading and outlining to rough sketching and dark shading and the rich velvety color of the Wolff's carbon stick allows for drawing with texture and dimension. High quality. Contains 6 grades of pencil carbon stick eraser and sharpener.