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Fisher Bullet Space Pen - Refill


Fisher Bullet Space Pen - Refill

Unlike ordinary ball pens which rely on gravity to feed ink, the Space Pen has a pressurized replaceable cartridge. 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. This advancement required the development of a special ink.

Made by Fisher, in the USA.