1) 2b mechanical pencil lead 2) 0.5, 0.7, 0.9mm x 60mm length ... pencil lead, pencil leads, 2mm pencil leads, color pencil lead 2mm (2) Hardness of pencil leads: HB, B,2B, 3B,H, 2H and so on. (3) Dia of pencil lead ... 60mm Length. (4) Type of pencil lead: Hi-polymer pencil leads, Clay pencil leads. White-graphit for color pencil leads (5) Option Color of mechanical ...