This is a ring set for couplesTop material is tough carbon fibre on which Love word is carved all over in stylish calligraphic wayBase metal is stainless steelMale ring is black color, female ring is blue color.Product has IPS process of Plating that makes it never fading, and keeps the Metallic Shine as OriginalPure surgical stainless steel is used to make this product, which doesnt cause any harm to skinNickel free and Lead free as per International StandardsNo harm to health.