1 gram pen

  World’s lightest pen? Perhaps. Anyway at @ 1 gram and for US$3 you have a 2 ½’ (6.5cm) pen which will write on practically any surface, even upside down or under water or in space. Fisher Space Pen’s Sealed Pressurized Ink Cartridge: Performs in temperatures from -30ºF to +250ºF, underwater, in zero gravity, at […]