Thin, light, and just the right size. The simplest circle hoops. Suitable for casual or official occasions. - Material : Brass, steel - Specification : Available in a pair. - Package : Wrap in thick ziplock for jewelry - How you preserve silver : You can wear your piece in any occasion, like taking a shower, going swimming, except going to a hot spring. The more you wear it, the more it gets shinier. Please preserve it in a ziplock. When the color turns black, use toothpaste to polish it.