About K COOL: We have been a jewelry manufacturer Since 1996, Mainly focus on 316L Stainless Steel top quality jewelry for OEM &ODM, and we just started the B2C business on Amazon in 2016.K COOL is its trading company,our mission is to provide the most fashionable and beautiful and healthy accessories for fashion people. Each item undergoes numerous checks during our manufacturing process with a final check performed before it leaves our factory .And we guarantee that all accessories does not contain harmful material such as nickel. Shipping: The item will be shipped from China via EMS e-packet. so it need approximately 15 days to reach you. Our product is top quality with lowest price and we believe you will worth it. After Service: If any questions/helps about your order, please feel free to contact our support team at support_kcool@126.com. We hope you never have the necessary, but if you do, our service is friendly and hassle-free.