Grid Bathroom Sink Drain offers a full line of designer drains and mounting rings in a variety of finishes including brushed nickel, chrome, oil-rubbed bronze, and matte black. This drain and mounting ring combo package will work with most vessel sinks that feature a drain hole 1 1/2” in diameter or larger and have a rounded sink bottom like most glass sinks. Vessel sinks often use grid drains to avoid a potential overflow of water due to the faucet not being turned off. A grid drain is continuously open much like the drain in a shower stall. This drain does not have an overflow.