They use them in the royal palace but that's only one good reason to try Jetz Scrubz. There are a few others. For starters, here is a list of the things they won't scratch chrome, copper, stainless steel, anodized surfaces, non stick coated cookware, glass, crystal, porcelain, china and ceramic. Here's another reason they'll clean up a big mess and afterward can be thrown right in the dishwasher for cleaning. Try it and you'll agree, this is a scrubber fit for royalty.