Stylish and Unique Magnetic bracelet with classic unisex design, can be worn by any adult and suitable for variety of occasions. You could only wear one or match with other accessories(bracelets/rings/watch/necklace). Pure Copper Copper is a red metal, also is a green metal. After a long time in the humid air, the copper surface will form a layer of patina slowly, this is oxidation. So if your bracelet turn green, it's normal and prove that the bracelet is made of pure copper. Maintenance tips for Copper It is recommended that you take it off when swimming, bathing or sweating for a long time. What's in the set: Reevaria elegant magnetic copper bracelet, cleaning cloth, gift packing with velvet pouch. (99.9% pure copper, LEAD / NICKEL FREE, 3500 GAUSS pure magnets