Fisher Space Pen Co.
Space Pen PR1 - Blue Ink Medium Point Pressurized Cartridge
Blue Ink Medium Point Space Pen Pressurized Cartridge. This is the standard 3 1/2 inch Pressurized Cartridge that fits most of our pens. The Write Out for this Cartridge is approximately 15,000 feet depending on writing style - 3 ½ times longer than a typical ball point Cartridge.