Hand crafted by cleverly merging 3 metals: silver, copper and brass. This clean and contemporary bangle is designed in Australia by Makers & Providers and ethically made by skilled artisans in Mexico. Approximate width: 3.5mm Approximate diameter (internal fit): 65mm Weight: approximately 16 grams Copper was the first metal ever used by humans. Middle Eastern artisans of the 5th and 6th millennia B.C. fashioned this lustrous, orange-red element into: tools, utensils, weapons and jewellery. Copper is said to have many beneficial health properties, including the pain relief of arthritis. You can either let your copper jewellery tarnish and develop a beautiful aged patina with time or you can easily clean it to maintain its rose gold colour. The easiest way to clean copper: Rub a mixture of 1 tablespoon of table salt and 1 cup of white vinegar onto the copper with a soft cloth and rinse. Or, immerse the tarnished copper into a pot of 3 cups of water and the salt-vinegar mixture, bring to a boil and boil until the grime and tarnish comes off