Check this out, will save you time and effort of cleaning your drain constantly. This drain cover can prevent the sewer from stuck can prevent the odor form sewer, so you can enjoy the fresh air home. It can only be used in the spring basket launcher It is not suitable for the downer with flap Our wash basin bounce drain-filter fits bathroom sink with 1.38 inch Drain hole. Specification: Material-brass material/silicone gasket size: Bottom diameter: about 31.5mm Overall height: about 58mm Press cover diameter: about 37mm Bouncing height about 60mm(2.36inch). Suitable for about 35mm drain Package contains: 2 x Universal wash basin bounce drain filter 2 in 1 bathtub stopper and filter, anti-fouling, washable, can prevent hair and valuables from flowing down in the bathtub, and prevent unnecessary blockage High-quality material-explosion-proof and crack-proof thick stainless steel, integrally formed, seamless and no water leakage. No water leakage - thickened stepped silicone gasket, no glue required, anti-oxidation and anti-leakage. Easy to install - anyone can install the pop-up drain because of its simple structure, no tools are needed.