Need a waterproof, sweat-resistant liner that locks in for the long haul? Want captivating color that glides on like a dream? Milani's Stay Put Eyeliner supercharges your look in just a single stroke. There?s a built-in sharpener to keep your tip in tip-top shape. There?s a built-in smudger to make smoky eyes a cinch. It?s truly the best of both worlds.