The Serial Liner is a waterproof eyeliner that is perfect for creating any line you desire. Its easy-to-apply formula makes it a great addition to your makeup collection. Made by a brand that is loved by many, this eyeliner is a popular choice for those who want to enhance their eyes. With its long-lasting formula, you can trust that it will stay put even during the most active summer days. Try it out today and see the difference it can make in your makeup routine.