STEIN is Pentel’s latest pencil lead technology which stands for "Strongest Technology by Enhanced SiO2 Integrated Network". The reinforced silica inside forms a honeycomb-shaped structure, achieving the highest level of strength. The lead is also smear-resistant. It is excellent in attaching graphite to the paper surface, making it highly resistant to abrasion stains. Ideal for left-handed users. Features: 10% stronger than existing Pentel leads, thanks to a honeycomb structure. Smoother than traditional refill leads on the market. High smear resistance which avoids smudging hands during writing or drawing.
