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 ... & Dia of pencilRound7.2mm, 7.4mm, 7.6mmHexagon6.9mm, 7.0mmTriangle7.2mm, 10mmDia of lead2.0mm,2.1mm,2.2mm,2.3mm,2.4mm,3.0mm,4 ... .0mm,7.2mmpencil craftunpaintedCertificationEN71-3,ASTM ...