Uni Mechanical Pencil Lead Refill Nano Dia 0.5mm HB

Uni Nano Dia mechanical pencil leads deliver ultra-smooth writing powered by 400 million nano-diamonds embedded throughout each lead.

The nano-diamond technology reduces internal friction between high-density graphite particles, creating bold, dark lines with minimal resistance, perfect for precise writing and drawing.

These 0.5mm leads work seamlessly with most standard mechanical pencils.

Trusted by professionals and creative minds worldwide, Uni by Mitsubishi brings precision engineering to your everyday writing needs.