The pressurized cartridge allows you to write on nearly all surfaces (wet or dry)and even under water. This special ink developed for NASA will not leak or evaporate giving it a shelf life estimated to be 100 years. It is a perfect combination of functionality and elegance. It comes in a gift box with a medium point black ink cartridge.

• Open the Bullet Pen measures 5.25 inches (133 mm)
• Closed the length is 3.75 inches (95 mm)
• All Bullet Space Pen series contain a #PR4 Black Ink
• Medium Point Pressurized Fisher Space Pen Refill