Drains: This oversized pop-up drain is made of solid brass for maximum strength & durability. This oversized design fits a wider range of GLASS sink drains, up to a 2 in. drain opening. There is No Overflow for sinks with no overflow. Its Tarnish-FREEAntique Copper finish top always looks new & is virtually Maintenance-FREE. Built-in stopper, it’s easy just press down! For use with most glass sinks, fits up to 2 in. drain opening.