Lovef Bridal Wedding Jewelry Crystal Rhinestone Collar Choker Necklace Silver/Gold Necklace :diameter Approx. 10cm (3.9") plus 10cm (3.9") extender chain width:1.5cm(0.59") make by 3-row Cz Rhinestones Easy to go with any kind of outfits and occasions,such as Party,wedding,dating,casual dinner,interview,school,work,bridal,cocktail party,etc. Package: 1 X Necklace Tips to maintain your sccessories: 1.Clean it with toothpaste is good.2.Avoid direct contact with hear,or keep exposing under the sun for a long time.3.Before showering,take out the accessories and keep it in a safe place. 4.Avoid solvents or chemicals like soap.Dry it with a clean towel if it gets wet.5.Use only a soft brush,never sharp or hard objects,to remove dirt or particles.