Fisher Space Pen X-Mark Bullet Space Pen PR-4 Black Ink Medium Point 5.27 in Length Gift Boxed w/ Square Top Cap Chrome. Ultimate Sports Pen The new Fisher X-Mark is ultimate dependability in a compact size making it the perfect take-along pen for people who camp climb hike ski bike fish snowboard hunt kayak and scuba dive. Fisher writing instruments write in temperatures from -50 to 250F underwater in zero gravity at any angleeven upside down That's why they're the choice of ski patrols search and rescue teams law enforcement agencies armed forces and anyone who demands writing reliability in adverse conditions. Each X-Mark is hand assembled hand tested and carries an unconditional lifetime guarantee. Specifications for Fisher Space Pen X-Mark Bullet Space Pen w/ Square Top Cap: Manufacturer: Fisher Space Pen Color: Chrome Length: 5.25 in Package Type: Gift Box Opening Method: Cap On/Off Closed Length: 3.75 in Finish: Chrome Features of Fisher Space Pen X-Mark Bullet Space Pen w/ Square Top Cap Ultimate Sports Pen Style: Cap Slides On & Off Length: Open - 5.25in Closed - 3.75in Cartridge: Fisher Pressurized PR4 Black Ink Medium Point Packaging: Moonscape Gift Box with Astronaut Sleeve Package Contents: Fisher Space Pen X-Mark Bullet Space Pen w/ Square Top Cap Fisher Space Pen 400WCCL: X-Mark Bullet Space Pen PR-4 Black Ink Medium Point 5.27 in Length Gift Boxed w/ Square Top Cap Chrome