For 5 cent each, there’s no doubt these are the cheapest to get. Beside they are cheap, they are also work great. I scrape lots of acrylics on marble tables. These work the best because can’t be any easier than this. Not only I scrape marble table tops but I use these to scrape my aquarium as well and it works amazingly. It makes algae disappear like magic. I used to use old credit cards to clean my aquarium but it picks up sand sometimes and causing some scratches. With this razer, just need to go over the glass once and it’s done. I rather buy them in bulk like this because it saves me money in the long run.
