Anti-tarnish tabs offer clean, non-abrasive, non-toxic and environmentally friendly prevention from tarnishing and corrosion for finished jewelry and jewelry components made with type of metals, such as , silver, brass, aluminum, and plated metal. 1" x 1" black anti-tarnish polyethylene tab made with technology used by the , the Guggenheim Museum, and jewelry manufacturers the world How to use: Place clean, dry jewelry in an airtight pouch or case along with a 1-inch strip (covers up to 30 cubic inches of container space) Protection will last up to 12 months, jewelry safe The anti-tarnish tablets are packed in a bag with the trademark of, Weight: 0.00551155655 Pounds, Manufacturer: Rtxbvg