The Clinique Kohl Shaper for Eyes is my favorite eye liner! I use both black and black coffee. Because the material of the pencil is soft, I can apply it to upper and lower eye lids, then use a rubber tip to soften the line, creating a natural look that defines the shape of my eyes without exaggeration. It also has the convenience of a sharpener built into the pencil cap, which is great when I need to create a new pencil point in a hurry - I don't have to go fishing for a separate sharpener, it's right there. I have tried several types of eye liner and found this one to be the best. I've used it for years and highly recommend it.
Clinique Kohl Shaper for Eyes is a formula that goes on easily, stays on all day (under most circumstances), and looks great. My favorite is Coffee Black, which offers a little softer look than black. The pencil lasts a long time, too.