Our Stay Sharp technology helps you keep your tips sharp for a precise application every time. The integrated sharpener inside the cap sharpens the tip to perfection and neatly holds onto the shavings each time you close your liner. Get gorgeous brows without the mess!• Self-sharpening pencil• No mess: lead shavings are kept inside the cap• Fine tip for extra-precise application• Waterproof, smudge-proof formula• Long-lasting hold (up to 14H)