Fisher Bullet Space Pen - Black w/Clip

The Fisher Bullet Space Pen is small enough to carry in your pocket. Unlike ordinary pens which rely on gravity to feed ink, the replaceable Space Pen cartridge is pressurized. At nearly 35 pounds per square inch, ink is continuously fed to the tungsten carbide ball, allowing the user to write at any angle, even upside down. Great for survival kits. 

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