1. Highquality materials: This bathroom drain stopper is made of highquality brass and stainless steel, durable and rust resistant. Equipped with a nonslip seal silicone ring, which has good air tightness and can fit seamlessly with the sink drain hole under water pressure to effectively prevent water leakage, making it a reliable choice for your sink. 2. Perfect compatibility: Our bathroom sink drain fits 99% of sink drain holes, drain hole diameter of 1.18 1.7 inches can be used. It is widely used for sinks, sink drains and shower tray drains. Note: Please measure yours before purchasing. 3. 2in1 design: The popup sink drain filter has a clogged basket inside, which combines a drain plug and a sieve in one. This design retains water and prevents blockages by trapping hair, dirt and valuable items such as jewellery rings before they flow down the drain and makes cleaning even more convenient. 4. Easy to install: The installation of a universal bathroom sink filter plug is effortless. Simply unplug the old sink and insert the plug. Cleaning is also a breeze as you can simply remove the filter basket and rinse it under running water.