I ordered these pens to replace the Verbatim Pen that broke.
For the price, they're pretty good. Double-Ended, one thick and the other thin. The thick side isnt the best pen to use on discs, as it really is thick and black. The thin side was much better, although the ink was a little lighter then I would have liked when using the thin side.
One problem I did have with these pens though, was the smell.
As soon as I took the top off, I got a big whiff up my nose. Not really the kind of thing you should give to your kids, but alright for Adults and CD writing.