The ink used is an archival quality ink that is water-proof and fade-resistant. The ink dries faster than a standard ballpoint to prevent smearing when writing. It protects against fading, water, and fraud, too. Here are more features:
- Permanent, water- and fade-resistant and acid-free for a lasting impression
- Features a triangular grip barrel that makes this pen super easy to hold and write with.
- Quality you can feel
- Maximum comfort and control with the latex-free grip
- To use the pen, simply click top to advance tip, then click side button to retract.
- 0. 7mm tip writes medium lines
- Black Gel Pen
- K437 by Pentel
- Each - only need to buy one pen in most cases.