The Pigment Liner by Staedtler is great for writing, sketching, and drawing. One of our favorite parts? It comes with an extra long metal tip making it perfect for using it with a ruler! No more weird angled pen swipes down a ruler again!
The black pigment ink is waterproof and lightfast, yet erasable when used on drafting paper. The ink won't bleed when highlighted.
A durable barrel guarantees long life, and automatic pressure equalization prevents the Pigment Liner from leaking during air travel. (Yep, it's that fancy.)
Comes in all of the sizes, from .05 to 1.2, for your hearts content!