Introducing our Waterproof Double-Sided Eyeliner Pen, a must-have for your makeup collection. The eyeliner features a unique triangle seal tip, which allows for easy and precise application. The black, quick-drying liquid formula is both waterproof and smudge-proof, ensuring that your eyeliner stays in place all day. The double-sided design allows for versatile use, with one side for fine lines and the other for bolder looks. Perfect for any occasion, this eyeliner will help you create a variety of looks, from a natural everyday look to a dramatic evening look.