? SPECIFICATION- 4mm tungsten carbide ring center engraved "I Love You", suitable for men and women to make couple rings ?TOUGHNESS AND HIGH DURABILITY- Tungsten carbides are in no doubt one of the strongest metal used in the jewelry industry, no worry of scratching International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.