【SUITABLE FOR 99% DRAIN HOLE】 The bathroom sink strainer is for most US standard sink drain 1 1/2 inch and 1 1/4 inch. Recommended to be used on drain hole diameter between 1.1"-1.96" and depth over 1.73". Please be sure to measure the drain hole of your sink drain before purchase. 【POP-UP DESIGN】 This structural design overturns the traditional, inconvenient sink stopper (e.g. basic plug with chain)! Easy operation, Just press the top cap down gently to switch 2 modes – stopper (to keep the water) and strainer (to drain off the water). 【BUILD-IN ANTI-CLOGGING STRAINER】 Unlike regular push-button drain, this sink drain has an anti-clogging basket strainer inside that neatly collecting hairs or dirt, which can prevents the drain from clogging up. Besides, these valuable items will not fall into the drain, such as jewelry, ring and so on. 【PREMIUM MATERIAL & LEAKPROOF】 The drain stopper is mainly made of quality stainless steel surface, brass materials, and silicon seal rings. Anti-rust, anti-cracking, integral molding. Good rebound strength and effectively prevents water leakage. 【EASY TO INSTALL】 Simply Say goodbye to fixing an old drain plug! You can just remove the old drain plug and insert this new one to finish. If you want to clean the sink stopper, just pick it up and it's easy to do.