uniball 150 Eye Ultra Micro Rollerball Pen 0.38mm Fine Tip, Black Ink, Precise Lines, Waterproof & Fade-Resistant Ink - Pack of 12

A 0.38mm tip delivers extremely fine, detailed lines, ideal for technical drawings, diagrams, and neat handwriting with high precision and minimal line width.

The ink is black, waterproof, and fade-resistant, providing durable lines that resist smudging. It’s designed for archival-quality documents and long-lasting notes.

Key specs include ultra micro 0.38mm tip, black waterproof ink, consistent ink flow, cap with pocket clip, and a sleek professional design. This is a pack of 12 Uni-ball Eye Ultra Micro rollerball pens.

Ideal for note-taking, technical writing, diagramming, drafting, planners, and presentations where precise, clean lines are important.

Remove the cap to write and cap it when not in use to prevent drying. Store in a cool, dry place and keep ink flowing by writing on paper regularly; if the ink seems to skip, a quick scribble on scratch paper can help prime the tip.

Yes, it is designed for everyday writing and uses non-toxic ink suitable for general use. As with any writing instrument, avoid ingestion and follow basic safety guidelines.

The pen features a sturdy cap and pocket clip for on-the-go use. Keep the cap on when not writing to protect the nib, and avoid rough handling that could damage the tip.

On Fepy, you’ll find similar ultra-fine rollerball options and other tip sizes. For finer lines, compare with alternatives like the 0.38mm variants; for bolder lines, consider the 0.5mm options. Examples include: https://fepy.com/products/uniball-eye-ultra-micro-0-38mm-rollerball-black-pack-12 and https://fepy.com/products/uniball-eye-rollerball-0-5mm-black-pack-12

This listing is a pack of 12. Uni-ball Eye Ultra Micro rollerball pens are typically sold as disposables until the ink runs out; other pack sizes may be available on Fepy if you need more or fewer pens.

Left-handed writers can use it, but rollerball inks can smudge for some people, especially with slow-drying ink. The 0.38mm tip helps with precision, and using quick-drying ink and a light hand can reduce smudging.

This line emphasizes an ultra-fine 0.38mm tip with waterproof, fade-resistant ink for sharp, precise lines. Other Uni-ball lines may feature different tip sizes, ink types (gel, ballpoint), or non-waterproof formulas, so choose based on your desired line width and ink performance.