1.7.2'' B wooden pencil 2.natural wooden pencil length:178mm 3.diameter ... pencil lead:2.0mm 4. EN71-3, ASTM-F963-08,R.S.c Product nameHigh-quality natural wooden pencilWood materialhigh grade ... , poplarLead Hardness8H,7H,6H,5H,4H,3H,2H,H,HB,B,2B,3B,4B,5B,6B,7B,8B,9B,10B,11B ...