High performance drawing pens. The 4600 serial drawing pens make sharp, clean black lines. The ink is fast drying and highly resistant to water when dry. Great for drafting, sketching, illustration, and design work. also makes it great for marking secure documents.

The unique pen cap contains a system that circulates the ink in the pen tip while the pen is capped. This prevents the tip from drying out while not in use, so that the next time you write, the pen will deliver a smooth line from the very start!

These pens are available in 7 tip sizes: 0.03mm, 0.05mm, 0.1mm, 0.3mm, 0.5mm, 0..8mm & Brush.