Description 【 Surgical Stainless Wide Chain Necklace - Surgical Stainless Wide Chain Necklace 】 《 Fabric properties 》 - Surgical Stainless Steel - This necklace uses stainless steel, primarily used in medical instruments, making it a skin-friendly material. "Surgical" refers to medical use / "Stainless steel" means rust-resistant iron. It's a safe alloy with minimal impact on the human body. Some metals, like silver, can oxidize and discolor due to air and sweat, or rust like iron. However, surgical stainless steel is resistant to corrosion and heat, offering the advantage of being less prone to aging even with long-term wear. ※ This material has extremely low allergenic properties among stainless steels. It is less likely to cause allergies because the metal ions that cause allergic reactions do not leach out. This does not guarantee that allergies will not occur for everyone. In the event of skin problems, please discontinue use immediately. ※ While it is resistant to rust and discoloration, it does not guarantee the product's condition permanently. Please understand that deterioration varies depending on usage and methods. Material...Stainless steel Accessories...None