Brush tip Pitt Artist Pens can produce a line of 1 to 5mm.
They offer odorless, permanent and waterproof inks in vibrant colors that will not bleed through paper. The pigmented India inks are lightfast, acid-free and pH Neutral.
They work beautifully on all types of papers and canvas, permanent on porous surfaces. Store horizontally when not in use.
LEFTY TEST: B
The "Lefty Test" is a grueling process of writing with a particular instrument and then immediately attempting to smudge it. Lefty Tests are conducted on pages from the Shorthand Standard Notebook. Other paper qualities may yield varying smudge results.
Grading scale:
A+ NO smudge
B A slight smudge; maybe needs a second more to dry
C Significant smudge
F Hard fail