6mm 8mm EKG Heartbeat Wedding Band Silver Black Tungsten Carbide Ring for Men Women Comfort Fit Size 4-15 Note: Listing price is for one ring only, please buy two rings for a matching set. 6 mm ring is for women, 8 mm ring is for men Genuine tungsten carbide, black tungsten wedding band with beveled edge, nice choice for matching couple ring set All Greenpod tungsten rings are durable, heavy, scratch resistant, color retention Best gift for wedding, engagement, anniversary. New Greenpod ring box is online now, the new and the original would be sent randomly. It's better to present as a gift. Life-time quality guarantee, 60 days for exchange or refund. 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 as soon as possible