Liquid eyeliner brushes are a great way to get the precision and control of a liquid liner without the hassle of a waterline. They're also perfect for people who want to create a winged or cat-eye look but aren't comfortable with the idea of drawing their line with a pen. Liquid eyeliner brushes come in a variety of sizes and shapes, allowing for a wide range of looks. When choosing a brush, it's important to consider the size of the brush, the desired effect, and how it will fit into your makeup routine. Here are some tips for finding the perfect brush for you.