CLIO Waterproof Pen Liner is a new and improved formula with an airtight locked cap makes the Clio waterproof pen liner unbeatable! \nNo flaking, no smudging—this is liquid eyeliner revolutionized. \nThe brush pen applicator tip allows for effortless dramatic winged eyeliner or barely-there, \nprecise lines that will last all day and all night. And when you’re done? \nThe Clio Waterproof Pen Liner is easy to remove with oil cleanser or makeup remover.