Installation Size: Pop-up drain cover diameter: 2.76'', Height (pop-up open): 3.15", Height (pop-up closed): 2.76", Hole diameter: 1.8’’; Overflow 4.14"L X 1.02 "W inches Durable Material: The Pop-Up Drain is made from anti-cracking, non-deforming Solid brass with stainless steel overflow.Integrally molded to provide a long product and service life. No Water Leakage: Thickened stepped silica-gel gasket instead of glue for leakproofing, and rust resistance. Superior Finish: Polished by a multi-layer electroplating process with a multi-layer Brushed Gold finish, it is built to resist daily scratches, anti-corrosion, long life, and beauty. Easy Installation: It is recommended to install with a silicone seal. Easy and leak-proof.