Product details:species: necklaceTreatment process: platingExtension chain: 10cm or lessWhether multi-layer: YesWhether to bring a pendant: YesPendant material: Titanium steelChain style: Water wave chainstyle: Women'sMaterial: stainless steelmodeling: Geometrypopular elements: Metal, pearl, chain, geometrystyle: Simplicityperimeter: 21cm (inclusive)-50cm (inclusive)