1.[Perfect Compatibility]Upgraded Edition Bathroom Sink Stopper Apply to U.S. Standard Drain Holes Inner diameter About 1.1-1.5 inch of sink drain holes. (Note: Please measure the diameter of the drain hole before purchasing ). Not matter basin, bathroom sink drains or shower bathtub drains, it can work with all. 2.[Premium Material]Our bathroom sink stopper is made of anti-cracking thickened quality stainless steel and brass material, with durability, strong structure, it can be used for a long time without cracking and water leakage. The sink drain plug has a beautiful bullet core thrust shape and Good rebound strength, with durability, flat and comfortable touching finish and strong structure. 3.[Anti Clogging Design]The pop-up bathroom sink stopper has dual filtering function. There is an anti-clogging basket on the surface and inside, which can prevent hair from blocking the drain. The filter cover on the sink plug can be removed directly for cleaning. 4.[Easy of Use]Compared with fixed size traditional sink drain stopper, The 3 silicone rings around our built-in filter basket keeps the stability, it will not tilt when you push the button. drainage is fast and smooth, Quickly seal and drain water with a single press. which can match seamlessly with the sink drain hole under the action of water pressure. So you don't have to worry about sealing and drainage.