Style: Modern Appearance: Wave Material: 925 Sterling Silver, Platinum-Plated, Opal Craft: Polished Care: Avoid Wearing During Exercise, As Sweat Will React With The Jewelry To Produce Silver Chloride And Copper Sulfide. Imported Gemstone Origin: Australia Including: A Matching Box. Product Measurements: Chain Length: 18 In Weight: 0.09 Oz (2.5 G) **Expect 5-10 Business Days For Orders To Ship Outbundle And Save! Discount Of 30% On Bundles Of 3 Or More. Thank You For Your Patience With Shipping And Feel Free To Reach Out With Any Questions!