4mm Galaxy Opal Black Tungsten Ring This ring is made from high-quality Tungsten Carbide, known for its extreme durability and scratch resistance. It's 10 times harder than 18K gold, 5 times harder than tool steel, and 4 times harder than titanium. Polished to a mirror finish, it retains its shine for years. The ring features a red galaxy opal inlay, black IP plating, and a dome shape for a sleek look. It's hypoallergenic and cobalt-free, ensuring comfort and safety for sensitive skin. Available in sizes 5-10.25, including half sizes. Includes a complimentary ring box.