Uni-ball Uni Pin Fineliners, 1.0mm, Smooth & Bold Detailing, Pigment Ink, Comfortable Grip, Ideal for Wrting & Drawing, Black – Box of 12

They use archival pigment ink that is water- and fade-resistant, helping lines stay crisp over time.

Yes. The nib is metal-clad to track cleanly along straight edges, making it ruler-safe for precise outlining.

1.0 mm line size, pigment ink (water- and light-resistant), smooth ink flow, metal-clad nib for ruler use, and a cap to protect the point between sessions.

Test on scrap paper first, use steady, controlled motions, and rely on a ruler or template for straight lines. Keep the pen capped when not in use to protect the tip.

Ideal for headings, borders, labeling, technical sketches, architectural diagrams, layout work, and bold outlines in drawings.

The 0.5 mm and 0.8 mm versions offer finer lines suitable for detail work, while the 1.0 mm version provides bolder, more dominant lines for emphasis and headings.

Alternative sizes you can compare on Fepy.com include the Uni Pin Fineliners 0.5 mm and 0.8 mm variants: - 0.5 mm: https://fepy.com/product/uni-ball-uni-pin-fineliners-0-5mm-black-box-of-12 - 0.8 mm: https://fepy.com/product/uni-ball-uni-pin-fineliners-0-8mm-black-box-of-12

The ink is pigment-based and intended for general use in writing and drawing. As with all markers, avoid ingestion and contact with eyes. Cap the pen when not in use to protect the tip.

This box contains 12 pens for consistent supply and value. If you encounter a defect or are unsatisfied, check Fepy’s standard return policies for art supplies and request an exchange or refund as applicable.

Uncap the pen, test on scrap paper to confirm line consistency, then begin outlining or labeling on your project. Keep the cap on when pausing to protect the tip and store it away from moisture.