... 2) Different diameter and hardness 3) Material: Willow charcoal, Vine charcoal Charcoal stickInner: white boxYears Experience of Charcoal Stick High ... quality and competitive priceMaterial: Willow charcoal, Vine charcoalDetailDiameter: 2-3mm, 3-4mm, 3-5mm, 4-6mm, ... ,7-8mmLengyh: 135mmBox/CTN: 240boxes/CTNMeas: 62*34*34cmG.W/N.W: 10/6KG Willow or Vine Black Drawing Wood Charcoal