Who says diamonds are only for jewelry? They are exquisite for creating precious artwork as well. The Uni NanoDia Low-Wear Pencil Leads are infused with nano-diamond pieces to create an unusually strong and high-quality lead. Multiple lead grades are available.
Probably one of my favorite leads.. the only downside is that the lead smears a
bit. Sometimes I rush during passing period at school and i just grab all my
notes (with the notebook open on a page I had just written on) and I had the
lead from the paper pressed on my jacket. By the time I sat down in my next
class, a patch of my notebook paper had been smeared off.