Achieve flawless brows with the Benefit Mighty Fine Brow Pen featuring a superfine triple-tip design. With 0.1 mm brush tips that mimic natural hair, this brow pen effortlessly fills in sparse areas for a defined, natural look that lasts all day. Waterproof, sweatproof, smudge-proof, and transfer-proof, it ensures your brows stay perfect through any occasion. Available in a variety of shades, including the rich 4 Warm Deep Brown. Enjoy 24-hour wear and the satisfaction of beautifully defined brows. Unlock your brow potential with this must-have beauty essential!