16 Gauge Rose Gold Plated Stainless Steel Hinged Segment Hoop Rings.These rings are available for Ear Cartilage, Daith, Nose Septum and More. Material: 316L Surgical Steel. Plating: Rose Gold PVD Coating. Seamless Finish. Bar Thickness: 16GA -1.2mm. Size: Inner diameter. The bundle includes a Set of 3 rings.