The description is spot on--this liquid liner does not smudge, flake, nor run and it's so easy to use! It's a nice black with a semi-gloss finish and the finest precise brush applicator I've come across yet!
Need to do detailed calligraphy? Done. Need clean precise tiny dots? Done. Need regular or cat winged eyeliner? So done. Be warned though, you'll need a heavy duty make-up cleanser to remove. Perfect for bridal work and underwater shoots!