Benefit Cosmetics Goof Proof Waterproof Easy Shape & Fill Eyebrow Pencil Shade Warm Black-Brown (NIB) A super-easy filling and shaping eyebrow pencil—now available in 12 shades to flatter every hair color, so anyone can be an expert. Goof Proof Brow Pencil features a custom tip that easily shapes, defines, and fills in brows. The soft, glide-on color creates naturally-full-looking, beautiful brows, and the spoolie-brush effortlessly blends the up-to-12-hour, waterproof color.