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! (1, Medium)

• 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.

This exceptional sealed pressurized ink cartridge in black is designed to meet the demands of everyone who requires reliability in a writing instrument. Available for purchase as a single, twin, or triple pack, it caters to various preferences by offering fine, medium, and bold point sizes. Whether you are jotting down notes in a challenging environment or simply enjoying the creative process, this cartridge is engineered to perform flawlessly. It functions effectively in extreme temperatures ranging from -20ºC to +200ºC, making it suitable for both indoor and outdoor use. Additionally, it has the unique ability to write underwater, on wet paper, and over grease, all while allowing you to write at any angle—even upside down! Its reliability is further highlighted by the fact that it will never dry out, and it includes an adapter to fit pens that use Parker ballpoint refills. Each cartridge offers a long writing capacity, with the ability to write over 3,000 meters depending on the writing style and surface.