These are pretty standard liquid eyeliners, but the best thing is that they come in so many different colours. The brightly coloured liners are very pigmented and go on opaque, which is more than you can say for cheaper brands doing the same thing. (I have the gold and the lime green Lime Crime liners).
Unfortunately these are pretty hard to get your hands on as they are fairly inconsistently stocked and the Lime Crime website doesn't seem to carry them at all - so they might be discontinued? They are really bright and the metallic ones are very shimmery so they are definitely worth tracking down if you can.
Love this product! Slides on effortlessly, stays on without fading or smudging. Would strongly recommend, but the only issue is the length of time it took to get here! Order well in advance of running out girls!
Tips: Order two the first time so you always have enough while awaiting the reorder as it took around 3-4 weeks to arrive.