Prismacolor Premier Ebony Graphite Sketching Pencil, Jet Black, Extra Smooth, 14420 (4-Pack of 12) These pencils are specifically designed for sketching, portrait and figure drawing, and illustrations and make fine line work stand out. Large core diameter provides extra-smooth, jet black lines for sketches and roughs that are easily blendable. Their versatile nature makes them a pencil every artist should have in their arsenal. Made of the finest-quality graphite.