Copper Scrubber aren’t messy like steel wool. They will not rust or splinter, making them perfect for cookware made of stainless steel, copper, anodized aluminum or multi-clad. They are also ideal for glassware, barbeque grills, stove burners, oven racks and other heavy-duty cleaning applications. Machine knit from pure copper to quickly remove baked-on foods and burnt-on grease the first time inside and out. Use for heavy duty cleaning. Recommended for copper and aluminum cookware, broiler pans, barbecue grills, stove burners and oven racks.