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Fisher Space Pen Refill - Black Triple Action - Fine
This is the Su Universal Fisher Triple Action Refill in black. Designed to be hand modified to three separate lengths, when broken down this refill fits the Fisher Q-4 and most other multi-ballpoint pens that use the D1 Format.
Paul.C Fisher developed the pressurized refill for Nasa in 1965. It's still in use today on manned space flights because it performs when other pens fail. The combination of tungsten carbide ballpoint and thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 pounds per square inch allows it to write in freezing cold, boiling heat, underwater, and at any angle - even upside down!
This is the Su Universal Fisher Triple Action Refill in black. Designed to be hand modified to three separate lengths, when broken down this refill fits the Fisher Q-4 and most other multi-ballpoint pens that use the D1 Format.
Paul.C Fisher developed the pressurized refill for Nasa in 1965. It's still in use today on manned space flights because it performs when other pens fail. The combination of tungsten carbide ballpoint and thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 pounds per square inch allows it to write in freezing cold, boiling heat, underwater, and at any angle - even upside down!
Product Code:
- Black - SU4F
Ink Type: Pressurised
Refill Type: Ballpoint Pen
Tip Type: Ball
Length: (Full Length) 98mm, (Medium Length) 88mm, (shortest Length) 66mmWidth: 2mm
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