Ballpoint refill uni Mitsubishi Pencil Lacknock UNSA7CNCE — red ink, conical tip

Refill for uni Mitsubishi Pencil Lacknock ballpoint pen, model UNSA7CNCE, with red ink. Designed as a direct replacement refill to restore writing functionality in compatible Lacknock pens, this refill provides smooth ballpoint writing with a conical tip and a standard ink flow suitable for everyday note-taking, forms, and general office use.

Advantages

The refill offers consistent red ink output and a conical tip that balances clarity and durability. It fits into Lacknock-style housings as a direct replacement, allowing easy restoration of an existing pen without replacing the entire instrument. The ink formulation is intended for reliable, streak-free lines under normal writing pressure and everyday use.

Suitable for

• Daily note-taking and journaling
• Filling out forms and paperwork
• Office and administrative writing tasks
• Schoolwork and study notes

Key specifications

• Ink colour: red
• Tip type: conical (ballpoint)
• Intended use: replacement refill for compatible Lacknock pen bodies
• Writing style: standard ballpoint flow suitable for everyday writing

How to use

Remove the spent refill from the pen body following the pen manufacturer's instructions. Insert the replacement refill into the pen housing until it seats securely. Test the pen on paper to ensure proper ink flow; if initial flow is light, pump the refill gently on scrap paper until consistent. Store unused refills capped or in a dry place to prevent drying.

Usage recommendations

For consistent performance, use this refill in pen bodies designed for Lacknock-compatible cartridges and avoid excessive pressure while writing. Keep the pen capped or retracted when not in use to preserve ink quality and prevent drying.