As I get older, my eyelids have drooped, making it difficult to apply eyeliner. I usually use Deja Vu Extra Fine Dark Brown (because it doesn't smudge and is easy to apply). I have single and double eyelids, but I've been looking for a thicker tip. This is just the right thickness for applying eyeliner. Best of all, it doesn't smudge! It doesn't come off even with eye drops. (I remove it around the eyes with a special cleaner.) 02 has a dark brown feel, but it's pigmented and makes my eyes look more powerful. (The pigmentation is even better than in the photo.) It felt a little strong for me, but I use it because it makes my eyes look bigger when I go out. I also apply it to the outer corners of my eyes. 04 is a gray. It's excellent! It's not as clear as black, but it doesn't look unnatural and makes my eyes look more defined. I'll buy it again when I run out! The only downside is that it's a retractable pen that doesn't go back into place. Other than that, I like it because it's easy to apply and doesn't come off even with eye drops.