Fisher Space Pen Pressurised Refill (PR) Medium Point - Black

A pressurized ink refill for Fisher Space Pens, medium point, black ink, designed for long-lasting use and writing in extreme conditions.

• The pressurized cartridge writes at any angle and upside down.
• The medium point delivers smooth, consistent lines.
• The black thixotropic ink has a unique formula.
• It writes on any surface, including wet, greasy, and underwater.
• It lasts three times longer than ordinary ballpoints.
• It fits all Fisher Space Pens and can be used in Parker-style pens with an adapter.