Thank you for viewing. This is a surgical stainless steel (304) infinity ring, symbolizing infinity and eternity. Surgical stainless steel, including 316L, 304, and 202, is a low-allergen material also used in medical tools like scalpels and scissors, as well as luxury watches. It is a special type of stainless steel with excellent properties, such as being rust-resistant and highly resistant to corrosion, oxidation, and heat. Size: 12 Material: Surgical stainless steel, gold coating Color: Gold Please feel free to ask any questions.