This is the Sleek Ink Pot which is Sleek's version of a gel eyeliner which comes in loads of colours. I have Espresso (which is black) and Purple Rain (obviously purple).
I am in absolute love with this product. It comes in a little pot as shown above and with the little brush which is really good for applying the eyeliner. I am a complete Gel Eyeliner convert after trying this as it looks fabulous and stays put better than any other eyeliner I have ever tried. It gives just as good definition as a liquid liner but is so much easier to apply. For a new starter to makeup I would definitely recommend this, and you don't get the awful smudging that you do with kohl liner.
I can't say enough good things about this product. I can't remember exactly how much it is... somewhere around £3-£4, and is so so worth it, pick up one in every colour!!
Have you tried this? Do you like it?