The Waterproof Gray Eyebrow Pen is a double-sided beauty essential for flawless brows. Its long-lasting formula provides full natural coverage, allowing you to shape and define your brows with ease. The gray shade adds a touch of sophistication to your look. This pen is water-proof, ensuring smudge-proof brows all day long. Achieve natural-looking brows and solve your eyebrow woes with this specialty eyebrow pen.