Uni-ball Uni Pin Fineliner, Assorted Line Set, Archival Pigment, Smooth & Precise Writing, Comofrtable Grip, Ideal for School & Home Use, Black – Pack of 12

They use archival pigment ink that is waterproof and fade-resistant, designed to preserve drawings and notes over time and resist smudging in typical classroom or studio use.

The full range includes multiple tip sizes to cover hairlines, outlines, and emphasis marks, providing versatility from fine details to bolder lines.

Metal sleeves protect the nibs from bending or fraying when used with rulers or guides, helping maintain crisp lines and longer pen life.

The dense pigmented ink is designed to scan and photocopy cleanly, producing sharp, legible lines for documentation, diagrams, and portfolios.

They’re well-suited for journaling, technical drawing, classroom illustration, doodling, note-taking, and any project requiring precise, archival-quality lines.

Keep caps on when not in use, store upright, and use on appropriate paper to prevent bleeding. If a pen seems to flow less, gently recap and try writing on scrap paper to re-warm the tip.

Yes, the ink is designed for long-lasting archival performance and typically conforms to safety standards for classroom materials, including non-toxicity in line with common industry expectations.

This pack is black ink, and the line quality remains consistent across the set due to uniform manufacturing and pigment formulation across all tips.

If you’re not satisfied, you can initiate a return per Fepy’s standard return policies for unopened or eligible items within the specified return window.

For alternative fineliners on Fepy, consider these comparable options: Uni Pin Fineliner 0.5mm Pack of 12 (https://fepy.com/product/uni-pin-fineliner-0-5mm-12-pack) and Uni Pin Fineliner 0.3mm Pack of 8 (https://fepy.com/product/uni-pin-fineliner-0-3mm-8-pack). These provide similar archival ink quality with different tip ranges to suit specific drafting or illustration needs.