Good Sealing:sink drain stopper with white leak-proof silicone ring, with good sealing to prevent food residue from causing pipe blockage.Note:it fits a 35mm sink hole,please make measurements before buying. . Unique Pop-up Design: Bathroom pop up sink plug has a built-in spring, press the pop-up cover to close or open easily, when closed the sink can be filled with water, press the lid again to drain quickly. . Premium Selected Materials: Pop up push button drain stopper made of stainless steel and brass, with a smooth surface, strong and corrosion resistant, not easy to hurt, silver appearance can better match with the sink. . Easy Installation: Bathroom sink stopper is easy to install, just take out the old sink stopper and insert new stopper button into sink hole, it can be easy to connect and use. . Applications Pop-up sink plugs are suitable for for kitchen sinks, bathroom basins, household laundry pools, bathtubs, mop pools, swimming pools, it can easily keep water in the sink. .