This pop up drain is designed to work with bathroom sinks with overflow, whatever undermount or above counter mount. Solid brass construction and high quality brushed nickel finish make it easy to fit many bathroom decors and last for decades. With a push-button design, it is easy to open or close the drain with a push of the cap on the drain. For easy installation, all required rubber gaskets are included. Update your bathroom sink with this push button pop up drain. – Constructed from solid brass for durability and reliability. – Finished in a high quality, corrosion resistant brushed nickel. – Push button mechanism – no pull-up necessary. – Fits any standard 1.75″ (45mm) opening installation. – All rubber gaskets needed for installation of the drain are included.