... high pencil lead 2.Dia of pencil leadls:2.425mm 3.long of pencil leads:185mm 4.international certification passed 1,Prouduct name:High-quality ... pencil leads;2,Hardness of pencil leads: 4H, 3H, 2H,H,HB ... leadls:2.0mm,2.1mm,2.2mm,2.3mm,2.4mm,3.0mm,4.0mm,7.2mm;4,Type of pencil leads: High-quality graphite pencil lead ;5 ...