![Fisher SPR1 - Blue Ink Medium Point Space Pen Pressurized Cartridge - Gear Supply Company](http://gearsupplyco.com/cdn/shop/products/ScreenShot2020-05-31at9.08.43PM_{width}x.png?v=1591467776)
Fisher SPR1 - Blue Ink Medium Point Space Pen Pressurized Cartridge
Blue Ink Medium Point Space Pen Pressurized Cartridge.
This is our standard 3 ½ 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.