Review (4/5): Took some time for me to make them look right
Before you purchase this item couple things you should know:
It comes in black and brown color. Make sure your hair is somewhat close to those two options for more natural look.
For me, it was not easy to make the lines look natural, and took me some time to learn to blend the lines for more soft lines.
How I use it:
I couldn't use the pencil to draw my whole eyebrows, just too much for me. But found they are perfect to cover my bald patches my eyebrows (see pictures). I only use the black one since it matches my hair color in the bald spot. Otherwise, they do last all day. I hope they make a grey/brown color available.