... & steel colorSizeCustomizedOEM&ODMAvailableLogo methodScreen Print,Emboss & Deboss,Laser Engaraving,Sticker With Epoxy etcOther material of ornamentReal leather,shell,zircon,crystal,carbon ... Mohs Scale of Hardness, which ranges from one to 10 with 10 being the highest, high-tech ceramic rates at ... be white, you will want to clean the ring often with water and mild detergent. Always make sure the ring ...