Good Sealing: Sink drain stopper with a white leak-proof silicone ring for effective sealing to help prevent food residue from causing pipe blockages. Note: Fits a 35mm sink hole—please measure before purchasing. Unique Pop-up Design: Bathroom pop-up sink plug features a built-in spring. Press the pop-up cover to easily open or close. When closed, the sink can hold water; press again to quickly drain. Premium Materials: Pop-up push button drain stopper constructed from stainless steel and brass. Smooth surface, durable, corrosion-resistant, and safe to handle. Silver finish complements most sinks. Easy Installation: Simply remove the old stopper and insert the new pop-up button into the sink hole for quick connection and use. Applications: Suitable for kitchen sinks, bathroom basins, household laundry pools, bathtubs, mop pools, and similar applications where water retention is needed. Specifications: Product Name: Pop-up Push Button Drain Plug Material: Stainless Steel, Brass Bounce Cover Diameter: 35mm Seal Ring Size: 37mm Package Includes: 2 x Pop-up Button Drain Plugs