Mars micro carbon 250
Staedtler 250 05-HB, HB, Gray, 0.0197" (0.5 mm), 12 pc(s)
Staedtler 250 05-HB. Hardness: HB, Writing colors: Gray, Thickness: 0.0197" (0.5 mm). Number of pencil leads per tube: 12 pc(s)