I went into it thinking "There is NO way this could work. How in the world can you roll on your eyeliner with this SMALL roller and it be 'perfect'?" Well I tried it out. I originally wanted to get a colored one to have a different eyeliner color but the store only had black..go figure. But that's alright.
You guys...this thing is pretty cool. It was actually really super easy to use. Didn't make a mess and went on so straight and easy. Here are a few pictures. I wish I made my wings a little bit bigger but I just did what I do on an every day basis.
This color is VERY black. Has a slight shine to it and lasts a LONG time. I didn't see anything that said "waterproof" but this doesn't move. You have to use an eye makeup remover to take this eyeliner off. So, all in all, I recommend! I got mine at Walmart for a little less than $7!