Fisher Space Pen M4 Lime Green M4 Cap-O-Matic Series Civilian. 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. Lime green aluminum construction with chrome clip
and tip. Loaded with medium point black ink cartridge. Uses Fisher
pressurized refill FP1211 (blue ink) or FP1241 (black ink). Writes
reliably under extreme conditions: over fingerprints, over grease,
extreme cold (-50°C), extreme heat (+200°C), over wet paper, in a vacuum,
and at any angle, even upside down.
Country of Origin: USA