Fisher Space Ink Refill (Red/Medium) SPR2

This Fisher Space Pen refill allows writing in various conditions including zero gravity, underwater, and extreme temperatures. It is compatible with The Atomic Bear tactical pens.

• The description claims the pen can write in zero gravity, underwater, upside down, through grease, and in extreme temperatures ranging from -30°F to +250°F.
• The description claims the pen is designed to perform flawlessly in any situation.