Bobbi Brown Perfectly Defined Long-Wear Brow Pencil in Wheat/4. Automatic pencil with a unique slanted tip for precise application and definition. Sweat proof, humidity-resistant and waterproof. 16 hours of wear. The tip is great for creating small hair like strokes and the flat edge gives a softer look. Such a great eyebrow pencil- specially for those in hot climates with oily skin! New in box, completely unused.