Review (1/5): This is as bad as it gets
The best part of this product is that it is well packaged and arrived quickly. As I was "unboxing" the product, I removed the lid from one of the eyeliner pens and the tip of the pen came off, spilling black ink all over me, my clothing and countertop. Each pen has two ends - a triangular stamp and a find point tip, which means there are four removable caps in total. Despite how carefully I tried to remove each cap, the pen tip came off *every* time, spilling the product everywhere.
I almost threw the product away at that point, but decided to actually try it first. The next morning, I carefully pulled each cap off. After cleaning up the spills (because the tips came off again), I discovered that one of the triangular tips was completely dry. The other triangular tip was so wet that it ran down my face...instead of a wing, it looked more like a teardrop prison tattoo.
I then uncapped each pointed tip and subsequently cleaned up from the spill (again). When I touched the tip to my lower eyelid, the ink literally flooded out of the tip and into my eye, filling my eye socket with black ink. Thinking that maybe the tip was defective, I tried the other pointed tip and got the same result.
The reviews for this product seem to be either really good or really bad, and so I guess you are taking a gamble by making this purchase.