i actually bought this sink stopper for a sink that does not have a insinkerator drain. i have a new sink from ikea and my drain is not fully functional but is only for looks. (that's ikea for you i guess-- that should be another review...) the drain stopper does work well for my sink with a pop-up style drain to stop the water from draining, as it completely covers it and looks nice with its brushed finish. if anyone else happens to be looking for a nice-looking drain stopper for a sink, this is great!