2mm mechanical pencil leads High quality pencil lead HB, B,2B, 3B,4B,H, 2H, 3H, 4H etc. ... . Passed EN-71. (1) Product name: mechanical pencil leads (2) Hardness of pencil leads: HB, B,2B, 3B,4B,H, 2H, 3H, ... 4H and so on. (3) Dia of mechanical pencil leads: 2 ... : 12 packs each box: 864 packs each carton: 2mm pencil leads HB, B,2B, 3B,4B,H, 2H, 3H, 4H