Features 1. **Waterproof & Smudge-Proof**: Our Stone Brown eyeliner is designed to withstand sweat and oil, ensuring your look stays flawless all day without smudging or fading. 2. **Long-Lasting Formula**: Enjoy vibrant, long-lasting color that locks in place, providing you with a stunning eye look that lasts from morning to night. 3. **Easy Application**: The sharpenable pen tip allows for precise control, making it easy to create smooth, defined lines around your eyes for a professional finish. 4. **Natural Finish**: Achieve a beautiful, natural look with our carefully formulated eyeliner that glides on effortlessly, enhancing your eyes without looking overly dramatic. 5. **Quality Ingredients**: Formulated with skin-friendly ingredients like triethanolamine and propylene, our eyeliner is safe for sensitive eyes and provides a comfortable wear throughout the day. Our waterproof eyeliner pen (stone brown) is carefully formulated with triethanolamine and propylene. Designed specifically for easily drawing smooth eyeliner with clear contours and less prone to smudging. The usage method is extremely convenient: Sharpen the pen tip before use to ensure it is sharp enough. Gently draw delicate lines along the contour around the eyes. And it has a long-lasting color-locking formula, is sweat-proof and oil-proof, and is not easy to come off makeup.