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. ^Two Mode Switch Pop-up design overturns the traditional, inconvenient sink stopper (e.g. basic plug with chain)! Just press the top cap down gently to switch 2 modes stopper (to keep the water) and strainer (to drain off the water). ^1.33-1.5 INCH DIAMETER BOUNCE DRAIN FILTER This product can be used for the different types of pop-up filter basket drainer. Suitable for drain holes with an inner diameter of 34mm - 38mm(1.33 - 1.5 in). ^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 Drain Filter Just take out the old one and insert the bounce core to complete Install. Anyone can complete this operation. Thickened and extended nut allows it to be installed by hand, without the use of tools.