Perfect Compatibility:Modified version Basin Stopper: PERFECT COMPATIBILITY Our sink drains strainers can be used for 99% of sink drain holes.(Two models Inner diameter 34-35mm or inner diameter 37-38mm, which can meet your different needs. Not matter basin, bathroom sink drains or shower bathtub drains, it can work with all.New Upgrade Design: sink plug with an anti-blocking basket strainer inside which can collect hairs and prevent the drain from clogging up, achieving effective filtering, unlike regular push button drain. Suitable for bathtub, bathroom and kitchen sink, and so on.And this bathroom pop-up sink stopper has a built-in spring, which can switch freely between pop-up and closed states.In addition, it also has two replaceable rubber rings to increase stability and prevent water leakage.Premium Materials: The sink drain plug is mainly made of high quality stainless steel and thickened copper materials, sturdy, anti-rust, anti-cracking. With its good bounce and rebound strength, rapidly draining and quickly sealing water.And high-quality silicone ring has good air tightness, can effectively prevent water leakage.You just take out the old bounce core and install a new bounce core.Our universal Bathroom Sink Stopper is strong, durable, anti-rust, anti-cracking.Easy To Install: Our bathroom pop up drain stopper has an innovative design with a push bounce type brass core, which can switch freely between pop-up and closed states, quickly seal and drain water with a single press.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.Package Included: 1 x Sink strainer