Uni-ball Uni Pin Compo Fine Ball Pen, 0.3 mm, Pigment Ink, Smooth Ink Flow, Optimized Control While Writing, Ideal for School, Home & Office Use - Blue

Tip size: 0.3 mm (ultra-fine). Ink: archival pigment that is waterproof and fade-resistant. Tip: metal-clad for durability. Color: blue. It also writes cleanly on standard paper and reproduces well in scans and copies.

The metal-clad tip adds reinforced durability, helping the tip resist wear when you use rulers, templates, or make many passes over a page, ensuring consistent lines over time.

Yes. The dense archival pigment ink produces sharp, dark lines that reproduce cleanly on copiers and scanners.

Perfect for precise writing, margin notes, technical diagrams, grids, architectural or engineering sketches, and any task that benefits from thin, clean, long-lasting lines.

Cap the pen when not in use, write with light to moderate pressure to avoid line blotting, and store the pen capped (preferably horizontally) to prevent the ink from drying out. It pairs well with rulers and templates for precise work.

0.3 mm offers ultra-fine, precise lines suitable for margins, grids, and diagrams. A 0.2 mm tip will give slightly finer lines, while a 0.5 mm tip produces bolder lines. Choose based on the line width you need for your task.

Standard writing papers, notebooks, grid pads, and other common paper types. Its archival pigment ink is particularly good for illustration, note-taking, and technical drawings where legibility and longevity matter.

The ink is designed for everyday professional use and offers non-toxic properties typical of archival pigment inks. Avoid contact with eyes; if contact occurs, rinse with water. Keep out of reach of children and use as directed.

This 0.3 mm model provides a reliable balance of precision and ink density with a durable metal-clad tip and archival pigment ink, making it especially suitable for detailed work and reliable scans. Consider whether you need ultra-fine lines (0.2 mm) or slightly bolder lines (0.5 mm) as alternatives.

If you need different line widths, consider these options available on Fepy: - Uniball Uni Pin Compo Fine Ball Pen 0.2 mm blue: https://fepy.com/product/uniball-uni-pin-compo-fine-ball-pen-0-2mm-blue - Uniball Uni Pin Compo Fine Ball Pen 0.5 mm blue: https://fepy.com/product/uniball-uni-pin-compo-fine-ball-pen-0-5mm-blue These offer either finer or bolder lines while retaining archival pigment ink and durability for similar applications.