Fisher Space Pen Ink Medium Point Refill - 3 Pack
Medium Point Space Pen Pressurized Cartridge.
3 1/2 inch Pressurized Cartridge that fits most Fisher Space Pens and many other click ball points. If you are fortunate enough to have a jagged piece of plastic on the back end of your present refill, then you can turn your current pen into an anti-gravity Space Pen. (Enjoy writing on most surfaces, in any position. Perfect for sports, contractors and crossword puzzles in bed.)
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