great for inner corner highlight.
Pac brushes are always good. This is a flat detailing brush. U can use this brush for highlighting the browbone and inner corner of eyes. Also it can be used as crease detailing and smoked out the liner or shadow on upper lashline. U can also use this as detailed concealing work, under and upper lips or under the brow u can smudge the concealer in littile amount. I can say its a Multipurpose brush, basically its a flar eye definer brush.
Not so good not so bad! It looks like a painting brush!