2 in 1 bathtub stopper and filter, washable, can prevent hair and valuables from leaking into the bathtub and prevent unnecessary blockage.High Quality Material: Made of high quality stainless steel + brass integrally cast and seamless, rust and corrosion resistant, durable and can be reused for a long time.Easy to install: Anyone can install a pop-up drain due to its simple construction, no tools required, the thickened and lengthened nut allows it to be fitted with bare hands.Powerful functions: The basket can block dust, prevent hair blockage, and can effectively block and protect valuables from being lost. Comfortable pressure switch, without clogging drainage.Size: It includes two rebound cores, the closed height is 50mm, the lid width is 35mm, and the strainer basket diameter is 31.5mm. (Please measure the diameter of the sink before purchasing!!!) Features: This drain cover can prevent the sewer from getting stuck, can prevent the smell from forming in the sewer, so that you can enjoy fresh air at home. Water leakage prevention: sink water filter Water leakage prevention design Double sealing silicone gasket has waterproof, wear-resistant, ozone-resistant and product-resistant properties chemicals. The sink drain strainers fit all standard bathroom sinks with a 1-1/2" to 1-3/4" (1.45 to 1. 96 inches) Specifications: Product name: Sink drain filters Material: stainless steel + brass Size: as picture show Precautions: There may be some deviation due to manual measurement, please prevail in kind.