Fisher Space Pens, Black Ink, Bold Point Space Pen Pressurized Refill

Fisher Space Pen’s sealed refill cartridge writes in extreme conditions and underwater. Each refill lasts up to 12,000 feet and is compatible with most Parker-style pens.

• The description claims the pen writes in extreme conditions including -30ºF to +250ºF, underwater, in zero gravity, and at any angle.
• The description claims each refill writes up to 12,000 feet.
• The description claims the pen is compatible with most Parker-style pens.