This is a souvenir from South America. The inner diameter is about 5.5 cm, suitable for women, and it's easy to use with a clasp. The material looks like a coin, but the details are unknown. It's well-made, but I don't use it much, so I'm selling it. I hope someone can make good use of it. The actual color appears darker than in the photos. - Material: Metal - Design: Coin design - Style: Vintage style Thank you for looking. #WinterSale