This chunky chain necklace is crafted from silver-plated recycled brass with a subtly oxidized patina and secures with a lobster clasp that features our signature COS tab. Layer it over tees and knitwear. Lobster-clasp closure Brass is a versatile material that can be recycled numerous times without losing any of its properties Shell: 100% Post-consumer recycled brass. Plating: 100% Silver. Excluding trims