Brow Pen from Anastasia Beverly Hills is a super-fine-tipped pencil that is ideal for creating realistic hair strokes for your most natural-looking eyebrows yet. Use the sharp, flexible brush tip to create volume with micro-strokes in areas where you want more fullness. This creates incomparable, precise details that look like hairs. The water-resistant formula is effortless to apply, provides a weightless feel and mimics the appearance of natural hair for a fuller-looking finish.