Fisher Space Pen Cap-O-Matic Space Pen M4SB - Writes Upside Down, Underwater, At Any Angle, Extreme Conditions

Fisher Space Pen Cap-O-Matic Space Pen M4SB is a compact, all-weather writing instrument designed for professionals who demand reliability in extreme conditions. With its sleek lacquered black finish and subtle gold accents, it pairs rugged performance with a refined look.

• Length: 5.25" overall, sized for comfortable, one-handed use and easy pocket carry.
• Ink & Nib: PR4 black ink, medium point cartridge for smooth, legible writing.
• Write Anywhere Capability: Writes upside down, at any angle, under water, over grease, and in extreme temperatures—great for fieldwork and challenging environments.
• Finish: Lacquered black with gold-tone accents for a premium, professional appearance.
• Carrying Feature: Built-in pocket clip keeps it secure and accessible on pockets, notebooks, or tool bags.
• Packaging: Boxed for easy gifting or presentation

Whether you’re a technician, researcher, adventurer, or traveler, this Cap-O-Matic Space Pen delivers dependable writing when and where you need it. The pressurized cartridge ensures consistent ink flow across temperatures and surfaces, so you can capture notes in rain, grease, or cramped cockpit spaces without interruption. Its balanced 5.25" size, durable finish, and convenient clip make it a practical addition to your everyday carry or professional toolkit.