Thank you for viewing! Direct purchase without comment is OK! It has been corroded and vintage processed. Material: Nickel silver (a copper-based alloy) Size: 12mm Simple packaging in a plastic bag Please be aware of color unevenness, scratches, etc. There may be slight errors in the details due to amateur measurements. The color of the actual product may differ from the photos depending on the shooting environment. Delivery will be in simple packaging. In addition, we have many other items for sale, such as brass carabiners, wallet chains, vintage-style items, stainless steel products, and brass keychains. Please take a look at them as well.