Waterproof And Sweatproof. No matter when clean makeup is the most important thing. This eyeliner pen has a powerful waterproof and sweat-proof function, which can keep your makeup clean in the hot summer. Quick-drying And Smooth. It allows you to finish makeup quickly when you are in a hurry. This eyeliner pen is very skin-friendly and has smooth lines. It dries easily. Appropriate Line Thickness. The right nib thickness is very friendly to novices. You can also adjust the thickness of the lines according to your makeup needs. Five Colors. The eyeliner pen comes in five colors of black, brown, purple, blue, and reddish-brown, which can be matched with most makeup looks. We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance. Remember: Shipping usually takes 2-3 weeks read our Shipping for more details!