Fisher Space Pen Refill Black Ink 1,2,3 Fine, Medium or Broad Refills, Pressurised Refills Writes Underwater, on Wet Paper, Grease and Upside Down! (3, Fine)

Sealed Pressurized Ink Cartridge: Ensures consistent ink flow in various conditions. Available in Multiple Packs: Choose from single, twin, or triple packs for your convenience. Point Size Options: Fine (0.9mm), Medium (1.1mm), and Bold (1.3mm) ball sizes tailored to your writing needs. Extreme Temperature Tolerance: Performs effectively between -20ºC and +200ºC. Versatile Writing Conditions: Writes on wet paper, underwater, and over greasy surfaces. Multi-Angle Writing: Capable of writing at any angle, including upside down. Space-Friendly: Designed to write in the gravity-free vacuum of space. Long Writing Life: Each cartridge can write for over 3,000 meters, depending on the conditions. Will Never Dry Out: Reliable performance with longevity. Adapter Included: Compatible with pens using Parker ballpoint refills for added convenience.