Fisher Space Pen Sealed Pressurized Ink Cartridge

● 100% AUTHENTIC AND FROM THE USA

● Military series matte black, with black pocket clip and tungsten carbide ballpoint tip

● All Brass and steel construction and extremely versatile

● Pressurized thixotropic ink cartridges are hermetically sealed & write 3x longer than ballpoint pens

● Reliably performs in extreme temperatures (-30F to +250F), underwater, in zero gravity, at any angle

● Precision assembled & hand-tested with a lifetime guarantee against all manufacturing defects