TIGRADE 8mm Tungsten Abalone Shell Inlay Polished Finish Step Edge Ring Wedding Band (11) Unisex 6mm/8mm Wedding Band with Abalone Shell Inlay Engagement Anniversary gift! Free Two Days Shipping for Prime Members. If you have any question, please post it in the part of "Customer Questions & Answers" below the page, you will get the answer by us or buyers. **BUYER ALERT: To ensure you receive the authentic TIGRADE item, please buy from seller: **TIGRADE ** . We are committed to excellent customer service. TIGRADE is not responsible for other sellers selling a different, inferior quality product.