Refill for Fisher Space Pen - SPR1, Medium, 1.1 mm, blue

Refill Fisher Space Pen from the PR (Pressurized Refill) series with a line width of 1.1 mm, lasts three times longer than ordinary refills. Each refill writes more than 3,600 m depending on the surface and writing style. The model fits all pens offered by the manufacturer, except for Q4.

Writing in all weather conditions is guaranteed by an extremely hard ball made of tungsten carbide. The set includes a white adapter that extends the refill by an additional 2.5 cm, so that it fits successfully into Parker pens and similar ones.

Features:

• Writes 3 times longer than an ordinary refill;
• Writes underwater, at any angle, and at temperatures from -35°C to +121°C;
• Very hard tungsten carbide ball;
• Thixotropic ink, hermetically sealed in a pressurized reservoir;
• Moving an internal separator separates the ink from the pressurized nitrogen;
• Includes an adapter that fits Parker pens;
• Refill length: 8.9 cm;
• Cap length: 2.5 cm;
• Line width: 1.1 mm;
• Ink colour: Blue;
• Exceptionally long life of over 100 years.