About Corato Corato is the manufacturers engaged in the production of tungsten carbide jewelry. Every ring from Corato is designed and made with hearts, And every ring is unisex engagement wedding bands, they are unique and fashion, Corato devotes to offering various of rings to witness the special time and happy in your life--wedding & engagement ceremony. -8mm in width -Black+rose gold -Sizes 5-14 -High polished interior -rose gold plated groove brushed finish surface The ring is made of tungsten carbide--the hardest material besides diamonds. Tungsten jewelry does not tarnish and does not oxidize, It has the characteristics of hypoallergenic and long service life. In general, tungsten jewelry can simply be treated with water, soap and a soft cloth. Are you looking for an unusual, yet fashionable accessory on your finger? Then you are exactly RIGHT with us! This men's and women's ring is fashionable, classy and elegant at the same time. About Design This piece of jewelery is black rose gold two-tone tungsten carbide ring, that has a rose gold plated groove on the surface, high polished internal & brushed finish external, which is simple yet fashionable. Due to its comfort fit inisde and nice weight, it is comfortable to wear and fits most occasions in everyday life. About Size Our rings are made with standard US ring size, please choose the right size for your finger before ordering. If the size you received is not suitable, please feel free to contact us for exchange, we will do our best to help you.