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.
I've found that this particular grade of lead is great for super dark writing.
It really stands out on the paper. It's almost as dark as a ballpoint pen. But
with my style of writing, every other sentence I'm advancing the lead. I guess
thats what I get for using such a soft lead. It also dosen't work well with the
Uni Kuru Toga. The mechanism that turns the lead dosen't turn the lead far
enough for a softer lead so you still end up with broad points on the lead.
Bummer! But still a great product!