Fisher Space Pen Original Astronaut AG7-BTN - Writes Upside Down, Underwater, And In Extreme Temperatures

The Fisher Space Pen Original Astronaut Space Pen AG7-BTN is a compact, rugged writing instrument built for professionals who face demanding environments. With a 5-inch overall length, a Black Titanium Nitride finish, and a convenient pocket clip, this pen delivers reliable performance when it matters most—even upside down or in challenging conditions.

• Length: 5" overall for comfortable handling and easy pocket carry
• Finish: Black Titanium Nitride coating for lasting durability and a sleek, low-reflect finish
• Ink & Point: PR4 black ink with a medium point cartridge for smooth, legible lines
• Writing Capabilities: Writes upside down, at any angle, under water, through grease, and in extreme temperatures
• Design & Packaging: Includes a pocket clip for secure carry and arrives boxed for gifting or storage

This pen keeps notes flowing in the field—whether you’re in the lab, on a boat, or in remote locations. The pressurized PR4 cartridge maintains consistent ink flow across temperature shifts, preventing skips or fades. The durable Black Titanium Nitride finish and robust construction make it a practical choice for everyday carry, fieldwork, and as a reliable gift for professionals and explorers alike.