2 IN 1 Bathroom Sink Stopper One unit, dual function. Simply push down the button to stop the water, push again to drain the water and catch hair. Its more convenient than other rubber bathroom sink stoppers with a single function.Fit 99% Bathroom Sink Drain Opening The bathroom sink strainer fits 99% US standard bathroom sink drain whose diameter is from 1.06 inches to 1.65 inches. Please be sure to measure the diameter of the sink drain hole before purchasing.Easy to Install & Clean No tools and costly plumber fees required, simply insert the sink plug into the drain hole to complete installation. In addition, the bathroom drain stopper can be disassembled into three parts to be cleaned easily.Rapid drainage & Effective Filtration Getting rid of the troublesome tools on unclogging pipes! The bathroom sink stopper can catch the hair effectively while draining rapidly. Dont worry about the trouble of clogging.Durable & Rust-proof Compared to the rubber bathroom sink stopper, the surface of this drain stopper is made of premium copper and smooth polished chrome which is nice looking and rust-resistant to cover your old rust sink drain surface. And the pop-up bullet core is made of durable premium brass which can be used for 5 years at least.