Mitsubishi Pencil Uni HB Mechanical Pencil 0.4 Lead, 10-pack (Box ULS0430HB)

[Core diameter] 0.4mm [Hardness] HB [Size] 76.0mm (height) x 20.0mm (width) x 7.0mm (thickness) / Weight: 5.8g [Materials] Front case: ABS, Back case: PP Mechanical pencil lead replacements: Dark, smooth, smudge-resistant, resistant to smudging and breakage, resistant to marker stains, slide-type mechanism, easy to write with, for neat and beautiful handwriting, smudge-proof manufacturing process.