Chore Boy Ultimate Copper Scrubbers are created with pure copper using the latest machine-knit procedures. These sponges can quickly and effectively remove burnt and baked food or grease. Steel wool can rust and splinter, causing even more aggravation when trying to clean dirty cookware. These copper scouring pads are ideal for cleaning cookware made of stainless steel, copper, anodized aluminum, or multi-clad. They are also great for glassware, barbeque grills, stove burners, oven racks, and other heavy-duty cleaning applications. There is no excuse not to grill outside when clean-up is a breeze.