I prefer a felt tip, but the problem I've found with this type of liquid liner pens is that they seem to dry out faster than I'd like. (theblondeshell.com)
You'll then see how to simplify and render the various features, textures and tones using just a couple of fine liners pens. (arttutor.com)
If you are a wing eyeliner girl then you need this fine tipped liner pen. (fcnextdoor.com)