Fisher SPR4B Space Pen Point Pressurised Refill black/bold

At last found this after looking everywhere. For my husbands stubby little pen

Love that I can get refills for my Fisher space pen so quickly and easily. My bullet pen was a birthday gift from a dear friend more years ago than I care to think about. It's the best, smoothest writing ballpoint I've ever had the pleasure to use. I would be very sad if refills were difficult to get.

Bought brown in error, revolting, like a skid mark for paper

Bold Black ink, exactly how I like it. Good price and fast delivery. Not a lot more to say, other than these are the best ink refills I've had and they fit Parker ball pens too.

Useful for writing upside down, ie when having to lie flat in bed. Lasts well, and refills easily available. Good quality pen.

Bought the original pen many years ago at Space Centre Florida, refill fits perfectly and writes great.

Fast delivery and a good replacement .

I received my space bullet pen 30+ years ago and recently found it in a box of old stuff.Sadly the ink was dry.This refill fits the pen perfectly and the wider tip gives a better writing experience than I remember without the thick globs that often plagued the writing.I’m chuffed to bits that my old pen is once again able to write on just about any surface.Maybe I can cadge a lift with Mr Bezos himself when he next goes to space and see if the pen actually does write in zero gravity.