Uni-ball Uni Compo Ultra-Fine Pen, 0.3 mm Plastic Tip, Smooth Ink Flow, Comfortable Grip, Ideal for School & Office Use - Red

Core specs include a 0.3 mm plastic tip for fine lines, a smooth regulated ink feed for consistent strokes, quick-drying red ink to minimize smears on notebooks and forms, and a tip that maintains its shape for lasting precision.

A 0.3 mm tip produces extremely fine, precise lines that are highly legible for small print, margins, and detailed annotations. It’s best when you need clean, exact details rather than bold, broad strokes.

Yes. The ink is formulated to dry quickly, helping reduce smearing on standard notebooks and forms when used with normal writing pressure and moving ink away from freshly written areas.

The ink is red. It’s well-suited for highlighting headings, marking corrections, and color-coding information for quick visual reference.

It’s designed for standard writing papers, margins, labels, and forms. It delivers clean lines on typical office or school paper; performance on glossy or dark surfaces may vary.

Cap the pen when not in use to prevent the ink from drying at the tip. Use steady, light pressure for writing to preserve tip shape, and store in a cool, dry place away from direct sunlight.

The provided specifications don’t specify refillability. It’s commonly offered as a precision, single-use style in many brands, but please confirm current packaging details if you need refill options.

Ideal for annotating margins, drawing precise guides, creating neat labels, color-coding notes, and any task requiring small, legible red markings without smearing.

For a close look at alternatives, you can compare with other ultra-fine 0.3 mm options on Fepy, such as Uni-ball’s other ultra-fine offerings or comparable brands. Examples include: https://fepy.com/product/uni-ball-uni-compo-ultra-fine-0-3mm-pen-black and https://fepy.com/product/uni-ball-signo-0-3mm-pen-red

Consider line thickness (0.3 mm vs slightly wider options), ink drying time, color (red vs other colors), tip durability, and your typical writing surface. Checking the product pages for each option on Fepy will help you compare ink flow, dry time, and durability side by side. Alternatives to explore include: https://fepy.com/product/uni-ball-uni-compo-ultra-fine-0-3mm-pen-black and https://fepy.com/product/staedtler-microline-0-3mm-pen

As with standard writing instruments, use as intended for writing and labeling. Avoid contact with eyes, keep away from small children, and store away from extreme heat. Specific safety certifications aren’t listed in the provided specs.