Fisher Space Pen Cap-O-Matic Space Pen SM4C Chrome - Writes Upside Down Underwater And In Extreme Temperatures

The Fisher Space Pen Cap-O-Matic SM4C is a compact, all-weather writing tool designed for professionals and adventurers who need reliable ink anywhere—upside down, underwater, or in extreme conditions.

• Length: 5.13" overall length for pocket-ready carry.
• Finish: Chrome body with a durable, polished appearance.
• Ink & Point: Fisher PR4 black ink with a medium-point tip for smooth, legible writing.
• Writing Capabilities: Writes upside down, at any angle, underwater, over grease, and in extreme temperatures—ideal for challenging environments.
• Mechanism: Cap-O-Matic retractable-cap system that protects the ink when not in use.
• Clip: Built-in pocket clip to keep it within reach in pockets, notebooks, or maps.
• Packaging: Clam-packed for secure storage and immediate use.

Designed for field work, labs, and outdoor adventures, this chrome-finished Space Pen delivers dependable performance when ordinary pens fail. The pressurized PR4 cartridge maintains consistent ink flow across a wide temperature range and on greasy or wet surfaces, so you can capture notes without reworking your writing tool. The Cap-O-Matic system protects the ink and prevents leaks, while the compact size and clip ensure it’s always accessible—whether you’re taking notes on a construction site, recording measurements in a wet environment, or logging maintenance in a cramped cockpit. For anyone who needs a reliable pen that adapts to tough conditions, the Fisher Space Pen Cap-O-Matic SM4C is a practical, well-made choice.