I have been using this eyeliner, along with many other, and can now say with confidence, that this is by far, the eyeliner you need to add to your makeup kit! It is incredibly effective, bold and gives you a nice clean line, especially for cat eyes! Application is super easy , as it is a pen and the tip is fine, so it allows for precision. The product itself, lasts for a very long time and it is definitely worth the price! I would recommend this to all makeup lovers, if you're looking for a quality make-up pen, this is the one!! THE ONE!