Staedtler 6B 100B-6B Mars Lumograph Black Drawing Pencil. Premium-quality matte black drawing pencil has a high proportion of carbon for matte jet-black results. Mars Lumograph Black pencils are designed for drawing and sketching on paper and matte drafting film. Lines reproduce well. Super-bonded lead is especially break-resistant. Pencil markings are easy to erase, and pencils are easy to sharpen. Each pencil has a black hexagon barrel and no eraser.