L-Fisher Space Pen Red/Gold M4 Cap-O-Matic Series Civilian S200 Apollo. 5 1/8" closed. This unique design engages the point with entire pen top. The standard top button has been removed to create a sleek, easy-to-use writing instrument. Aluminum construction. Red barrel with gold cap, clip and tip. Loaded with medium point black ink cartridge. Uses Fisher pressurized refill FP1211 (blue ink) or FP1241 (blank ink). Hang packaged. Writes reliably under extreme conditions: over fingerprints, over grease, extreme cold (-50 degreeC), extreme heat (+200 degreeC), over wet paper, in a vacuum, and at any angle, even upside down.