To use this double - ended seal eyeliner, first, pick the end with the shape you like. Hold the eyeliner like a pen and gently draw along your lash line. For a more defined look, you can go over the line a few times. Remember to keep the cap on when not in use to prevent it from drying out. Store it in a cool, dry place. Avoid getting it in your eyes. If it comes into contact with your eyes accidentally, rinse immediately with clean water. With proper care, this eyeliner will last you a long time and keep adding charm to your eyes.