Pentel Ain Stein Mechanical Pencil Lead, 0.5mm HB, 40 Leads

Pentel Ain Stein mechanical pencil lead refills feature premium 0.5mm HB grade lead engineered for superior strength and smooth writing. Each blue container includes 40 leads and uses Pentel's advanced lead technology for enhanced break resistance and consistent performance. Key features: • 0.5mm lead diameter for precise writing • HB grade for balanced hardness • 40 leads per container • Break-resistant lead formula • Smooth writing performance • Convenient storage tube with blue cap • Compatible with standard 0.5mm mechanical pencils The Ain Stein series from Pentel represents their premium line of mechanical pencil leads, featuring specialized manufacturing processes that enhance lead strength while maintaining smoothness. The blue plastic container has clear size and grade markings for easy identification. The HB grade provides an optimal balance between line darkness and wear resistance, making it suitable for general writing, drafting, and technical drawings.