Fisher Space Pen Shuttle Series Ballpoint Pen - CH4B

With a Fisher Space Pen, you can write upside down, underwater, in freezing temperatures, in boiling temperatures and even over grease, with style.

The Space Pen refill last 3 times longer than a standard ballpoint refill, thanks to its pressurised ink. 

Refill: Fisher Space Pen Pressurised Ballpoint Refill.