what ink fits this pen

Fischer Space Pen refills fit the pen. If I use a space pen every day, I will need to get a refill about once per year, but your mileage may vary depending upon use. I usually pick up a black refill ar Staples. If you go to spacepen.com, you can order the following refills: - Medium width ink - Blue, black, red green, burgandy, purple, brown, turquoise, silver - fine ink - Blue, black, red, green - bold ink - blue, blackRefills are $6. There are space pen refills will fit Parker pens with the included adapter. They also have Cross type refills.

Can women use this pen?

I laughed when my wife asked if she could use this pen, and she responded by showing me how the pen would look if I were Frankenstein with a pen through my neck.... So, yes, women seem to be able to adapt quickly to this pen.

How does this pen open? Is it a twist of the cap to advance the cartridge?

It's a standard clicker pen. Really easy to use. You twist the endcap to replace the ink cartridge. It's a wonderful pen!

What is the barel of the pen made from, is it metal or plastic?

The entire barrel (end-to-end) is metal, but not magnetic, and it appears to be BRASS. The internal spring (magnetic) is steel. The internal mechanism appears to be white plastic.

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Fisher Space Pen Cap-O-Matic Ballpoint Pen - Matt Black

Fisher Space Pen Cap-O-Matic Ballpoint Pen - Matt Black

Product ID: 47967114

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Details

Brand
Fisher Space
Writing instrument form
Ballpoint Pen
Colour
Black
Ink colour
Black
Age range (description)
Adult
Material
Brass

🌡️Operates -30°F to 250°F

🖊️Writes upside down & underwater

🛡️Lifetime manufacturing warranty

Description

🖤 Write beyond limits with the pen that’s out of this world.

CAP O MATIC CONVENIENCE - Smooth cap-activated retractable tip for quick, confident use on the go.
ECO FRIENDLY EXCELLENCE - Made in the USA with recyclable parts and packaging—sustainability meets performance.
SLEEK MATTE BLACK ARMOR - Chrome-plated solid brass with a stealthy matte black powder coat for a professional edge.
WRITE ANYWHERE ANYTIME - Defies gravity and conditions—writes underwater, upside down, and in extreme temps.
BUILT TO LAST A LIFETIME - Unconditional lifetime warranty ensures your pen is as reliable as your ambition.

The Fisher Space Pen Cap-O-Matic in matte black is a precision-engineered ballpoint pen crafted from chrome-plated solid brass with a durable powder coating. It writes flawlessly in extreme conditions—including upside down, underwater, and temperatures from -30°F to 250°F—thanks to its patented pressurized ink cartridge. Featuring a convenient cap-activated retractable tip and backed by a lifetime warranty, this pen combines rugged reliability with sleek, professional style, all while supporting eco-conscious manufacturing.

Specifications

Manufacturer	Fisher Space Pen
Brand	Fisher Space Pen
Model Number	M4B
Product Dimensions	13.21 x 1.27 x 1.27 cm; 9.07 g
Batteries	1 A batteries required.
Colour	Black
Closure	Retractable
Grip Type	Ribbed
Pencil Lead Degree (Hardness)	B
Material Type	Brass
Number of Items	1
Size	1 count (Pack of 1)
Point Type	Medium
Line Size	0.5mm
Ink Colour	Black
Tip Type	ballpoint
Manufacturer Part Number	M4B
Item Weight	9.07 g

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