Ballpoint pen uni Mitsubishi Pencil SX-101 0.35 mm Red

The uni Mitsubishi Pencil SX-101 0.35 mm in red is a slim ballpoint pen engineered for fine-line writing and detailed annotation. Its 0.35 mm tip delivers precise, consistently controlled ink flow for neat handwriting, technical sketches, and tight-margin notes. The compact, lightweight body provides comfortable handling for office, school, and everyday use while the red ink ensures clear emphasis and easy identification in documents and planners.

Advantages

The ultra-fine 0.35 mm tip enables crisp, legible lines suitable for detailed work and small handwriting. The pen's ink formulation offers smooth, even coverage without excessive bleeding or skipping, allowing reliable performance on a variety of paper types. Its slim profile and balanced weight make extended use comfortable, and the vibrant red ink provides clear contrast for corrections, highlights, and annotations.

Suitable for

• Technical sketches and precise line drawings
• Annotating documents, editing and proofreading
• Note-taking where compact, fine writing is required
• School assignments and exam markings
• Planners, calendars, and color-coded organization

Key specifications

• Tip size: 0.35 mm ultra-fine ballpoint
• Ink color: red
• Writing style: fine-line ballpoint
• Body: slim, lightweight design for comfortable grip
• Intended use: precise writing, annotations, and sketching

How to use

Remove the cap or retract the tip as applicable and hold the pen at a comfortable angle to the paper, typically around 45 degrees, for consistent ink flow. Apply gentle, even pressure—excessive force is unnecessary due to the finely tuned tip. For best results, write at a steady pace and allow a moment for ink to dry before touching the page. Store the pen capped or retracted when not in use to prevent drying.

Usage recommendations

Use on quality, smooth paper to minimize feathering and ensure the finest line clarity; avoid heavily textured or damp paper. For archival or long-term documents, pair with appropriate paper types and allow ample drying time for the red ink.