8mm Solid Copper Hammered Ring, Sizes 6-12 To keep your copper jewelry looking shiny bright, we recommend Tarnix, which you can buy at the grocery store in the laundry detergent aisle. Look for the big black bottle. Pour some Tarnix in a little bowl, dunk in your copper pieces, take them out and hand wash them in dishwashing detergent and water, rinse, dry completely.
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