Made of brass. Can be stylishly used by threading through neck straps, hoodie strings, etc. - Brass is highly durable and develops character with use. Enjoy the unique changes and aging of its dull gold luster. It pairs well with denim and leather, and is a popular material that is not affected by trends, regardless of whether it's for men or women. - Recommended for those who like American casual style, American goods, and those who like retro and antique accessories. Also suitable as a present or gift for someone special. - Can be attached to bags, belts, etc. with carabiners or key hooks, used as an accessory, as an interior decoration or ornament, or as a handmade part. 【Notes】 - Product images may differ slightly from the actual color due to lighting conditions and the monitor environment you are using.