100% my favorite blue pencil lead, it erases really easy and doesn't mark up the
paper unless I really am drawing heavily with it. Its a great technical artists
lead, I always recommend it to people. Even if it is hard to find.
I use dipping nibs for inking pretty extensively and wanted to try using one of
these for finer detail work to use with rulers. Since I usually have to use
microns, which have a lighter less permanent ink then I prefer.
I was pretty pleased with my buy, it has a bit of flex for getting a little line
It does tend to get clogged and skip occasionally and can still not take the
place of my good old nibs but it is convenient and has a decent line quality.