Features: 1. **Long-lasting Formula**: Our brown eyeliner pen features a color-locking formula that ensures your eye makeup stays vibrant and intact throughout the day, resisting sweat and oil for all-day wear. 2. **Smudge-proof Design**: Enjoy clear, defined lines with our smudge-proof technology, allowing you to create stunning eye looks without worrying about fading or smudging, even in humid conditions. 3. **Precision Application**: The sharpenable tip allows for precise control, enabling you to draw delicate lines or bold strokes effortlessly, perfect for any makeup style. 4. **Easy to Use**: Simply sharpen the pen tip before use for optimal performance. The user-friendly design makes it easy for anyone to achieve professional-looking eyeliner. 5. **Versatile Makeup Effects**: Control the thickness of your lines with ease, allowing you to switch between subtle and dramatic looks, making it a must-have for any makeup enthusiast. Our eyeliner (brown) is carefully formulated from acrylate copolymers and ethylene glycol. Designed specifically for creating clear contours and more distinct eye makeup. The usage method is extremely convenient: sharpen the pen tip before use to ensure it is sharp enough. Gently draw along the contour of the eyeliner to create a delicate line. Easily draw smooth eyeliner with a clear contour and less prone to smudging. Long-lasting color-locking formula, sweat-proof and oil-proof, and less prone to makeup smudge. And it is convenient and flexible to control the thickness of the lines to create different makeup effects.