Fast and Slim Design: Apply with one press per second, no special techniques needed. Features hair-like precision with smooth, defined lines that resist smudging. The seal is made from high-grade silicone and uses specialized eyeliner sealing liquid. Dual-Function Brush: Combines eyeliner and mascara in one stroke. A 0.01mm ultra-fine tip captures intricate eye details. The integrated design saves time and simplifies application. Ergonomic U-Shaped Design: Curved to fit the natural contour of the lower eyelid. Precision craftsmanship ensures a slim, delicate line that resists smudging. Beveled edge creates clean, consistent lines without fraying. Raised printing surface ensures even ink distribution. Waterproof and Long-Lasting: Provides waterproof wear, gentle on the sensitive eye area. Formulated with safe, non-irritating ingredients. Quick-drying, smudge-proof, and oil-resistant. Available in two shades: dark brown and black. Not recommended for pregnant women.