I've seen tons of similar stoppers for less than a dollar at discount stores but thought this one would be MUCH better. Boy was I wrong. There are some things I like to wash by hand in my workshop that has a deep porcelain sink. But every single time I've used this stopper and swished materials around gently, the stopper has detached from the sink bottom, wasting the solution I'm using. You wouldn't think something as simple as a stopper would be hard to manufacture. Oh well, back to the drawing board.