FISHER Space Pen Fisher Space Pen Bullet Black Titanium 400BTN

A compact capped ballpoint pen. This bullet pen has a brass body with a black titanium nitride coating. The Fisher Space Pen is filled with nitrogen gas, and the pressure of this gas causes the ink to move to the tip of the pen, making it possible to write in a weightless environment or even upside down. It uses Fisher Space Pen PR type refills, which can be used in zero gravity. Please read. /Fisher Space Pen 400BTN Black Titanium / Space Pen Details / Color Black Titanium Nitride Coating Size Approx. 135mm (open) Weight Approx. 20g Material Brass