Wonderful, multi-purpose brush!
This is a great firm, stiff brush. I've used it for eyeliner but because of my preference for a thinner tip, I usse MAC's 209. However, I use this everyday for my eyebrows and have found that I don't get nearly as good of a result if I use other brushes. It picks up color wonderfully (I use eyeshadow to fill them in) and makes for a nice sharp line. Highly recommend!