Necklace for women, "Hypoallergenic" Simple Chain Necklace, Surgical Stainless Steel 316L Color: Gold [Actual Size] FREE: Length 35.5-41 cm - Discreet shipping - Immediate purchase OK - Ships within 24 hours [Features of Hypoallergenic Surgical Stainless Steel 316L] (1) The highest-grade hypoallergenic material, also used in medical scalpels. (2) Extremely resistant to discoloration and rust. (3) Water-resistant, so you can wear it in the bath, hot springs, sea, and pool ◎ This material is very popular not only for those with metal allergies but also for those without, as it's "safe to wear all the time! Gentle on the skin!" [What is 316L?] Surgical stainless steel is a coined term combining "surgical" (medical) and "stainless steel" (rust-resistant steel). Among them, "316L" is used for accessories, a corrosion-resistant material also used in medical instruments such as medical scalpels and scissors. It is resistant to discoloration and is water-resistant, making it suitable for baths, hot springs, pools, and the sea. The biggest advantage is that it can be used by people with metal allergies. Material: Stainless steel Color: Gold Decoration: None (chain necklace)