Product information:Type: Ring, ringColor: gold foil sea blue, gold foil bright red, gold foil black, gold foil purple, gold foil GreenSize: inner diameter 16mm(6size US code), inner diameter 17mm(7size US code), inner diameter 18mm(8size US code), inner diameter 19mm(9size US code), the inner diameter of the circle is 20mm(10size US code), the inner diameter of the circle is 21mm(11size US code), the inner diameter of the circle is 22mm(12size US code), and the inner diameter of the circle is 15mm(5size US code)Style: UnisexMaterial: Plastic/resinShape: GeometricPopular elements: SnowflakeStyle: Natural