For Drains With A Diameter Of 1 Inch To 1 96 Inches, Upgraded Edition Stainless ?Universal Sink Stopper?Our basin pop-up drain filter can be used for 99% of US standard sink drain holes. (Inner diameter 28mm-49mm (1.1inch-1.96inch). Specialty perfect for US standard sink drain 1 1/4 inch and 1 1/3 inch. No matter basin, bathroom sink drains or shower bathtub drains, it can work with all. ?BUILD-IN STRAINER?Unlike regular push-button drain, this sink drain has an anti-clogging basket strainer inside that neatly collecting hairs and prevents the drain from clogging up, stuff that will not get into the drain, such as jewelry, ring, dirt and so on. ?STURDY BASKET STOPPER?Integrally-molded and seamless,the rubber ring around our built-in basket keeps the stability, it will not tilt when you push the button, so you don't have to worry about sealing and drainage. ?High-quality Material ?The drain stopper is mainly made of quality stainless steel and brass materials, anti-rust, anti-cracking, integral molding. Good bounce and rebound strength, quickly seal and drain water with a single press. ?EASY TO INSTALL?Anyone can install the pop-up drain because of its simple structure, no tools are needed, just take out the old one and insert the bounce core to complete it.