I've found that you can get the ink from a cheap pen, such as a Uniball Gel
Impact RT (which you can find in bulk at any office supply store or Wal-mart),
fits the casing and the opening of this pen perfectly--although I must say that
the ink from the Impact RT is much more runny and thicker than I would have
liked. It beats expensive refills!
This is a very stylish looking pen that writes as well as it looks. Another
reviewer (pen9uin) stated that this pen does not come with a clip. I found that
this is a pain to tolerate (the pen kept rolling off my desk), so I got the
removable clip on a very cheap Pentel Sharplet-2 Mechanical Pencil and pried it
to where it would snap onto the cap of this pen. If the lack of the clip is as
bothersome to you as it was to me, you should try to find that pencil or any
pen/pencil that has an adjustable clip.