Pilot Mechanical Pencil Lead Neox Graphite 0.3mm, 2b (Hrf3g-20-2b), 20 Leads&times;3 Pack/total 60 Leads (Japan Import) [Komainu-dou Original Package] The diameter of a lead : 0.3mm One Box Contains 20 Refills: Total 60 Refills Mechanical pencil lead which combined high purity graphite High strength