Space Pen Ballpoint Pressurized Refill - Red digital writing Its revolutionary piston-filling mechanism allows

Its revolutionary piston-filling mechanism allows for a greater ink capacity

The Kaweco Sport Piston AL Solo Black Fountain Pen features a unique and compact design that makes it smaller than other pens

Includes 3 interchangeable nibs: Fine (1

The vibrant colors make it a perfect match for techo covers of any color

Finn Double Walled Vaccum features:

Space Pen Ballpoint Pressurized Refill - Red digital writing Its revolutionary piston-filling mechanism allowsSpace Pen Ballpoint Pressurized Refill use patented Fisher ink technology. 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. Fits the Following Space Pen product categories: