... days(in stock),7 days(not in stock)InventoryYesDelviery methodBy air,express or sea (eg.DHL,FEDEX,UPS,TNT,EMS etc)MOQ100pcsPayment ... and ComfortableIf you are one of many people who suffer from allergies to metals, such as the commonly used nickel, ceramic ... harder. According to the Mohs Scale of Hardness, which ranges from one to 10 with 10 being the highest, high-tech ...