Pilot Mechanical Pencil Lead Neox Graphite 0.5mm, 2B (HRF5G-20-2B), 40 Leads&times;3 Pack/total 120 Leads (Japan Import) [Komainu-Dou Original Package] The diameter of a lead : 0.5mm One Box Contains 40 Refills: Total 120 Refills Mechanical pencil lead which combined high purity graphite High strength