Personalized Keychain - Hand Stamped Gift - Brass Keychain - Copper Keychain Made of 18g brass or 18g copper They are 1/2" wide and 2" long Comes attached to a jump ring and a key ring ➜Due to the nature of brass and copper, they will naturally form a patina over time. This patina will form faster if they are constantly touched from the oils on your fingers. They can be polished off with a jewelry polishing cloth if you wish to restore them back to its shiny and new state. ➜The black in the stamping can fade out either over time or if it is rubbed or gotten wet. The stamping will still be there it just won't be blackened in. There is no permanent solution to keeping the black in. If the black does fade out of your stamping, please message us and we can help you to get it looking new again!