O.TWO.O Gold Silk Smooth Liquid Eyeliner Waterproof liquid liner that won’t smudge, perfect for effortless use. Precise tip for easy application, even for beginners, providing bold, streak-free lines in a single stroke. Quick-drying formula for smooth, even lines that last up to 12 hours. Super water-resistant and smudge-proof for all-day wear. Fine-tip brush allows for precise control and application: Ultra-precise tip provides flexibility and ease of use, ensuring fluid strokes for a defined finish. Achieve a long-lasting cat-eye look with professional-quality ink eyeliner.  Control the thickness of your lines with ease. Features a very fine nib for smooth lines, waterproof film technology for quick drying, and a cool black color for a striking finish.