Space Pen Refill for Rotring Esprit Pens
Fisher Space Pen’s Sealed Pressurized Ink Cartridge Black Fine
Performs in temperatures from -30ºF to +250ºF, underwater, in zero gravity, at
any angle–even upside down! The ultimate in dependability! The choice of ski
patrols, search and rescue teams, law enforcement agencies, armed forces, and
everyone who demands reliability in a writing instrument..