A dual-ended, ultraprecision brow pencil and spoolie duo with a self-sharpening tip that delivers precise application for even, defined brows. What it does: Lancomes Brow Define Pencil is a waterproof and budge-proof long-lasting brow pencil that grips skin to create shape where there is missing hair. Featuring a micro-mechanical design, it gives arches extreme accuracy, precision, and evenness with its ultrafine tip and comb. The precision tip creates the appearance of actual brow hair for natural-looking, balanced and perfectly defined eyebrows.