Details: SPACE PEN or Astronaut Pen Originally designed in the 1960's for use by the astronauts in space, the Astronaut Pressurized pen was created to perform under the most difficult conditions. The refill's design uses pressure, not gravity to push the ink through the barrel utilizing an internal balance of pressure, ink consistency, and ballpoint glide. The amazing Astronaut pen writes upside down ,on glossy surfaces, in any weather and at any angle! Only 4" long when closed, it opens to full size.
