Requires very little maintenance of dishwashing sponges used for all purposes. Do not scratch chromium, copper, stainless steel, anodized surface, non-stick cooking tools, glass, crystals, ceramics, ceramics, ceramics, etc. 100% non-filling.Eggs and melted cheese, too. There is a large hole pattern on the sink, so you can wash away the food. Nice and clean. All-perfect scrubbers are designed to prevent severe deformation even after months of use and dry quickly. It is an innovative premium kitchen scrubber that is inexpensive and lasts long.