1.7.2'' B wooden pencil 2.natural wooden pencil length:178mm 3.diameter of pencil lead:2.0mm 4. EN71-3, ASTM-F963-08 ... , poplarLead Hardness8H,7H,6H,5H,4H,3H,2H,H,HB,B,2B,3B,4B,5B,6B,7B,8B,9B,10B,11B ... .9mm, 7.0mmTriangle7.2mm, 10mmDia of lead2.0mm,2.1mm,2.2mm,2.3mm,2.4mm,3.0mm,4.0mm,7.2mmpencil craftunpaintedCertificationEN71-3 ...