1. Standard 1 3/4inch Drain Opening: perfect for any above-counter sink without overflow.2. Solid Metal Construction: The pop-up drain stopper is constructed of brass and type premium stainless steel, protecting against corrosion and rust in a humid environment.3. Easy to Install, No Leaks: All required gaskets, seals and brass mounting nut are included. make the gaskets are in the right position ( refer to product pictures or instructions) to avoid leakage.4. Easy to Operate: Spring loaded push button does not require a lift rod. Simply push the drain cap down to and to seal, push again to open and to drain water. For routine cleaning, you can turn the cap counter-clockwise to unscrew and remove.5. Brushed Brass Finish: brushed brass finish, not mirror-like shining finish nor champagne gold finish, with a combination of clean, refined lines for a high-end style.Specifications:Overflow: NOHeight (Pop-Up Open): 8.5-inch (215mm)Diameter of the Pop-Up Cap: 2.6-inch (66mm)Max. Thickness: 1.97 inches (50mm)Tailpiece O.D.: 1.25 inches (32mm)Colour: GoldMaterial: brass+stainless steelSize: 205x31.5mm, mounting : 41mm-55mmPackage Contents:1 x Sink DrainOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.