It's called Velvet Eyeliner and it's a liquid with a brush tip that can be used to apply thin or thick lines and works great to get that perfect cat eye. Now I know you're thinking there's nothing to extraordinary about that but here's the kicker, I got my first Velvet Eyeliner over a year ago and it still works! I've never had a liquid eyeliner last this long and it is so simple to use. Plus it's very study and compact so works great for girls that are always on the go as it is super simple to just toss in your bag and go. Also because of the way that it is designed, if you accidently forget to put the cap on it, no worries because it can not dry out! Simply put the cap back on and store it tip side down overnight and it should be good as new in the morning.
This eyeliner has great staying power and the black (the only color that I have tried personally) is pretty intense which I love. It's water based so can be removed at the end of the night with simple soap and water rather than having to scrub your poor eyes to death, although I use my make-up remover anyway just out of habit. Overall I would give this eyeliner a 9 out of 10 stars and suggest every girl who uses eyeliner on a daily bases get one, you won't regret it!