The sniper brush (ultra-fine brush) tapers to a point making it easy to apply product to the inner & outer corners of your eyes as well as your lower lashes. Its fine bristles & smooth application help create long separated lashes while being fiber-free. The ultra-fine brush features a gentle curve that conforms to the shape of your eyelids. Thanks to its thin design applying product from the base of your lashes is effortless. It also boasts a waterproof formula that resists water tears & sweat.