... . (1) Product name: Hight quality mechanical pencil lead, pencil leads, 0.5mm pencil leads, color pencil lead. (2) Hardness of pencil leads: HB, B,2B, 3B,H ... , 2H and so on. (3) Dia of pencil lead refill: 0.5, 0.7, 0.9mm x 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 ...