Material: Platinum PVD Plated on Stainless SteelDimensions:Total Chain Length: 17.7inchChain Width: 2.1mmLink Length: 5.8mmLink Width: 2.3mmWeight: 3.2g Water-Resistant 316L stainless steel Anti-tarnish Sweatproof Hypoallergenic Product Code: SST-S-N8-NS