The standard Fisher “PR Series” Refills were developed for NASA and have been used on EVERY Space Shuttle mission both American and Russian. They are hermetically sealed with a specially formulated thixotropic ink and pressurized to about 35 PSI. They are the only refills that will write at any angle because they do not rely on gravity, and have a shelf life of 100 years.
This is a New Fisher Space Pen, Model #SC725B, Matte Black Trekker Space Pen and it is hang packed as shown on the previous menu. This is a capped pen made to go anywhere and write everywhere. This pen is a compact 3-7/8" long when capped with a barrel that is .350 in diameter and is rubberized at the grip. The posi-lock cap for this pen has a key ring attached and is very secure. The pen comes with a carabineer (not approved for climbing) and a breakaway lanyard making it easy to attach where needed and keep handy for use. It hangs up side down but with its pressurized black ink, medium point PR Series ink cartridge it is always ready to use.
SC725B
MSRP $35.00
$29.75