Instant purchase OK! Simple yet impactful shine with double rings. Features a stainless steel flat anchor chain, with a chain length of 50cm. The double rings have an outer diameter of 22mm and an inner diameter of 18mm. The material is corrosion-resistant stainless steel, which is water-resistant and helps prevent metal allergies. Looks great in any situation. How about matching with gold? Color: Black & Silver [Metal Allergy Resistant] The material is 316L surgical stainless steel. This stainless steel is used in medical scalpels, so it is unlikely to cause allergies. It is also resistant to rust and discoloration, maintaining its beauty, and is used in luxury watches. Recently, it has become the most 주목받는 new material in the jewelry industry because it is harder than gold and silver. #Click here for jono's men's accessories