this review title is: careful too not let this touch finished surfaces and the content is: it is a bit difficult to use and you have to scrub hard to get polish off but better than the other fully loaded chem types be careful tho as it will easily take the finish off a simulated marble finish sink sink is a sort of hard plastic.there are other information for this review, one is this reviewer did purchase it and the other is 1 people think this review is helpful.