Charcoal Set Includes: 2 compressed charcoal pencils (soft and medium), natural charcoal sticks (3-6mm), compressed charcoal sticks (extra soft, soft, and meduim) and grey kneaded eraser.   Pitt Compressed charcoals are of the highest quality and offers the deepest possible black stroke.  Produced from a fine mixture of soot and charcoal.  Especially suitable for large areas.