Material: CopperMaterial Finish: 18K Gold Plating + Normal PlatingStone Type: Cubic ZirconStone Setting: Bar SettingStone Cut: RoundStone Color: ClearWidth: 3mm/4mm/5mmLength: 18inch, 20inch,24inchClasp Type: Triple Locking Box Clasp With Side Locks Each cz is carefully set by hand by a professional jeweler and creating a total iced out look. Jewelry Care: Please avoid direct contact with water, perspiration, and chemicals such as perfume, detergent, and lotion. Excessive light, heat or moisture, which will deteriorate the quality of the plating on the metal. Also, exposing plated jewelry to liquids will cause the plating to lose its finish. Please take care to protect your bling as you would have most blinging jewelry.