This is a listing for a 316L surgical stainless steel necklace. The 316L marking indicates: It is a type of high-quality stainless steel also used in medical instruments. It contains a higher amount of additives such as chromium and molybdenum than regular stainless steel, making it superior in corrosion resistance and durability. Therefore, it is widely used in accessories and medical instruments. The design is simple and perfect for making your neckline stylish. How about taking this opportunity? Please refrain from purchasing if you are overly concerned about details. Only those who understand are welcome to purchase.