Uni-ball Uni Pin Fineliner, Assorted Line Set, Archival Pigment, Smooth & Precise Writing, Ideal for School & Home Use, Black – Pack of 6

The pens use pigment-based archival ink that is waterproof and fade-resistant, ensuring long-lasting lines on a variety of papers.

The set is described as having assorted precision tips to cover fine detail, outlines, and labeling versatility. Exact sizes aren’t listed, but you’ll have a range suitable for precise work.

Tip sleeves are metal-reinforced to improve durability when using rulers or straightedges, helping resist tip wear during detailed work.

Yes. The rich black lines produced by the archival ink reproduce cleanly in scans and copies, which is ideal for technical drawings and document workflows.

Use them for technical drawing, architectural sketches, notebook diagrams, handwriting and lettering in journals, labeling folders, and classroom projects.

Keep the pens capped when not in use. Store them in a cool, dry place away from heavy heat or direct sunlight. Avoid dropping or bending the tips to maintain line quality.

They are designed for school and home use with non-toxic ink. As with any writing instrument, avoid contact with eyes and mouth, and keep out of reach of small children who might put them in their mouths.

The 6-pack provides value for classrooms, art kits, or mixed projects, offering multiple pens in one purchase for convenience and cost savings per pen compared with buying singly.

Compared to other Uni Pin fineliners on Fepy, this set emphasizes archival, waterproof pigment ink with reinforced tips for durability and easy scanning. For size variety, you might explore other single-pen options to match your preferred tip width.

If you’re considering other options, you can explore: 1) Uni-ball Uni Pin Fineliner 0.5mm Black (single or multi-pack) for consistent 0.5mm lines, 2) Uni Pin Fineliner 0.3mm Black for finer detail, and 3) other assorted tip-width sets for broader versatility. Example pages to compare (subject to availability): https://fepy.com/product/uni-ball-uni-pin-fineliner-0-5mm-black, https://fepy.com/product/uni-ball-uni-pin-fineliner-0-3mm-black

Consider the level of detail needed: finer sizes (like 0.3–0.5mm) are great for precise outlines and lettering, while slightly thicker tips are better for bold lines or clearer labels. For archival, waterproof needs, the pigment-based ink in these fineliners provides stable lines across sizes.