Uni Smudge Proof Lead - 0.5mm HB - Blue Case

40 pcs of 0.5 HB Uni Smudge Proof Mechanical pencil leads

Smudge-proof manufacturing method (dirt-resistant mechanism)

In conventional sharp leads, very fine core dust that appears during writing is floating around the drawing line, and this spreads to the paper surface due to rubbing, causing stains. The UNI, a sharp replacement nib, has succeeded in suppressing dirt by using the "smudge-proof manufacturing method" that adheres the core to the paper surface.
In addition, we have been developing based on our conventional products, which have achieved "strong", "dense", and "smooth" at a high level by blending nano diamonds, and it is a sharp core that adds the feature of "stain resistance" while retaining the features of conventional products.