I am using this eye liner from last two weeks and everytime I used I got a perfect straight line. It cant spread over my eyes. Sometimes if you want to get smokey eyes you must go for it. I will not say that this is perfect but it works best for me. Although I am regular user of eyeliners and I must say that this is the best I have used till now. The quality of this product is very great. So I will definitely recommend this product so you must give it a try.