1.7.2'' B wooden pencil 2.natural wooden pencil length:178mm ... ,9B,10B,11B,12BLength178mmShape & 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-F963-08