Color: Silver Material: Stainless steel This is a necklace chain made of surgical stainless steel, which has recently gained attention. Surgical stainless steel (316L) is a material that is particularly resistant to corrosion among stainless steels, and it is less likely to cause metal allergies, so it is used for medical scalpels and scissors. It is a material that does not rust or cause rashes even if it comes into contact with sweat or seawater. This chain has a Figaro design, which consists of one long link followed by three short links, making it more stylish than a Kihei or Azuki chain. The length is about 50cm, the width is 4mm, and the weight is about 9.5 grams, giving it a strong presence. Custom orders for shorter or longer lengths are also available. It's a great bargain. Please compare it with other stores.