Review (2/5): It's not felt. It's a kohl pencil.
The liner is no different than any other black kohl liner. It's just in a different twist up container. There is a thin liner on one end and a thicker rounded liner on the other. There's nothing to smudge the liner with and no felt liner included. It doesn't seem to last nearly as long as promised and it will smudge or smear if it gets oils or humidity near it.