This detailing brow pen from Anastasia Beverly Hills is engineered for precise application, allowing you to mimic the look of natural, fine brow hairs. Its specialized tip offers expert control for creating ultra-fine, hair-like strokes, perfect for filling in sparse areas or adding definition to the tail of the brow. Achieve a polished, natural-looking finish with buildable color that adheres well throughout the day. Ideal for detailed brow sculpting and enhancing overall brow structure.