Men's Copper Dog Tag Necklace with Matching Keychain

Copper dog tag fashion necklace for men comes with a matching dog tag key chain or luggage tag. This item is pure 99.99% copper. Tag measures: 2 inches x 1.25 inches. Necklace chain is 24 inches long. Copper Copper Cu has antiviral and antibacterial properties. It is also highly conductive of heat and electricity.  Copper has been used as far back as 4500 BC in Mesopotamia. This useful and attractive metal has a deep reddish-brown color. Copper, silver and gold are three precious metals that are valuable in both jewelry and decoration as well as industrial uses.