For every mechanical lover, breaking off pencil leads during writing or drawing is very annoying. Uni NanoDia Pencil Lead uses new nanometer technology to create stronger and high-quality lead. It helps users to effectively avoid breaking off leads during writing or drawing. You can erase cleanly and easily with a regular eraser.
It lasts a long time.
It lasts a long time. I bought my first pack mid 2018 and I use the lead everyday, I've only now had to buy another pack! The lead is soft and doesn't feel scratchy, it erases well.