💕【WATERPROOF AND SMUDGEOROOF】💕The formula is long-lasting, waterproof and smudge-proof. The eye liner liquid pen does not need re-touching throughout the day and evening. If you have oily or combination skin, use an eye shadow primer before applying eyeliner. , 💕【STAMP AND LINE】💕 Each pen has 2 ends. One end for stamping and the other has a very fine tip for defining the rest of the eye with precision. You can even use the size of the liner as a stencil for a more dramatic makeup.