This standard pop-up drain is made of solid brass for maximum strength and durability. This standard design fits a broader range of ceramic or vitreous china sink drains, drain opening. There is an overflow for sinks with an overflow. Its tarnish-free brass physical vapor deposition (PVD) finish always looks new and is virtually maintenance-free. Built-in stopper, it's easy to press down! For use with most ceramic or vitreous china sinks.