Fisher Infinium Space Pen - Writes Upside Down At Any Angle Under Water Over Grease In Extreme Temperatures

The Fisher Space Pen Infinium INFB-1 is a rugged, precision-writing tool built for professionals who need reliable ink in the toughest conditions. With a black titanium nitride finish and a blue PR4 ink cartridge, it writes when and where others can’t—including upside down, underwater, or through grease.

• Length (Closed): 4.25" for easy pocket carry
• Finish: Black titanium nitride coating for durability and corrosion resistance
• Ink & Tip: PR4 blue ink with a medium-point cartridge for smooth, legible writing
• Writing Capabilities: Writes upside down, at any angle, underwater, through grease, and in extreme temperatures
• Carry Option: Integrated pocket clip to keep it secure on a pocket or notebook
• Packaging: Boxed for gifting, storage, or presentation

With the Infinium INFB-1, you gain a dependable writing instrument that stays true in challenging environments—from rain-soaked field notes to high-heat workshop logs. The pressurized PR4 cartridge maintains consistent ink flow, so your lines stay clean, even when your hands are oily or you’re writing in tight, awkward positions. The sturdy black titanium nitride finish resists wear, so the pen retains its professional look through daily use. Whether you’re a technician, outdoors enthusiast, researcher, or traveler, this pen is built to be your go-to writing partner wherever work or adventure takes you.