Uni NanoDia Mechanical Pencil Lead 0.5 mm B, 40 leads
Uni's NanoDia leads are infused with nano-diamond particles to add strength to the lead and reduce breakage while yielding dark, crisp lines. This low-wear lead is great for writing at length. Available in several lead grades.
- Pack of: 40 leads
- Lead Grade: B
- Lead Diameter: 0.5 mm