Free Gift Box<br />Size: Size 7  inner diameter is about 17mm<br />      Size 8  inner diameter is about 18mm<br />      Size 9  inner diameter is about 19mm<br />Material: Zinc Alloy<br />Plating: 18k Rose gold plated<br />Environmental Standard: Nickel， Lead， Cadmium free<br />Main Stone  Austria Crystal<br />Occasion Anniversary， Engagement， Gift， Party， Wedding