The specially developed WOPEX material allows a highly efficient pencil production using an innovative natural fibre material. It is completely solvent-free production | Environmentally friendly 100% PEFC - wood from certified, sustainably managed forests | Classic hexagonal shape | 3mm diameter coloured lead | Non-slip, velvet soft surface | Excellent lead stability and break-resistance | Easy to sharpen | Safe for children | Comes in a plastic gratnell style tray with lid | Bonus 6 free metal sharpeners