Mitsubishi 0.5mm Smudge Proof Leads

This is a set of 40x NanoDia leads for 0.5 mm mechanical pencils, the most common lead size. Nano-diamond particles are embedded in the graphite for strength and a dark, low-smudge line.

The 0.5 mm lead is recommended for daily writing, note-taking and general office use. Each lead measures 60 mm in length (2.36") at a diameter of 0.5 mm (0.020"). Available from 4B through 4H.

Mitsubishi Pencil is a Japanese company founded in 1887. One of the country's oldest pencil makers, they have produced writing instruments prized for the precision of their graphite and the longevity of their industrial design. The "Uni" brand was first introduced as a line of rollerball pens, and has gradually expanded to all of the company's innovative products.

Made in Japan.