Uni Mechanical Pencil Lead Nano Dia Color 0.7mm, Blue (U07202NDC.33), 20 Leads &times;3 Pack/total 60 Leads (Japan Import) [Komainu-Dou Original Package] Color: Blue The diameter of a lead : 0.7mm One Box Contains 20 Refills: Total 60 Refills Erasable with an eraser