Perfect Compatibility: Our universal bathroom sink stopper fits most sink drain holes. (inner diameter 28mm-38mm/1.1inch-1.5inch) So it can be used the washbasin, bathroom sink drains or shower tub drains. Please be sure to measure the drain hole of the sink before purchase. | New Upgrade Design: Compared with the ordinary sink stopper, the upgraded pop-up sink drain stopper has an anti blocking basket inside, which can prevent the sewer from blocking hair, rings and other sundries. And this bathroom pop-up sink stopper has a built-in spring, which can switch freely between pop-up and closed states. It is easy to operate with one click. In addition, it also has two replaceable rubber rings to increase stability and prevent water leakage. | Premium Materials: Made of brass and stainless steel, not easy to rust, sturdy and durable. And high-quality silicone ring has good air tightness, can effectively prevent water leakage. | Easy To Install: This drain stopper is simple in structure and can be installed without any tools. It can be completed by taking out the old drain plug and inserting the new drain stopper, which saves the cost of plumbers for you. And if you want to clean the drain stopper, you can easily remove the sink stopper and clean it. | Customer Service: We are committed to providing high-quality products and better services. Your satisfaction is our top priority. If you have any questions during purchase and use, please contact us, and we will reply you within 24 hours and provide you satisfactory service.