The Bullet Pen is a design classic. The raw brass version is my favorite since it develops a gorgeous patina over time. Because of its small size the pen can easily be stored in about any pocket, wallet or bag. With the friction-fit cap posted, the pen is 135 millimeters long and provides a comfortable writing experience. What makes the Bullet Pen really unique is the pressurized ink cartridge that works in temperatures from -35 to 120 °C (-30 to 250 °F), underwater, in zero gravity, at any angle, and even upside down.
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