ColorStay Eyeliner - BenefitsOphthalmologist-tested, because safety always mattersNew improved formula stays where it's supposed to for up to 24 hours-plus, it's waterproofGet the drama and definition you've been craving from a pencil eyeliner with this lightweight formulaFeaturesThere's a built-in sharpener on the opposite end, so you always get precise lines (great for cat eyes) - ColorStay Eyeliner