Monolith Pocket Set Contains 6 pencils and an eraser in a handy tin
Monolith Graphite Pencils have a thin lacquer coating.
Six levels of hardness: 9B 8B 6B 4B 2B HB
Different types of graphite are mixed with ceramic clay and then finely ground to produce a high quality lead. The proportion of graphite to clay determines the softness and darkness of the lead.