Sweetiee Jewelry 925 Sterling Silver Unique Safety Pin Lock with Cubic Zirconia Charm Stackable Expandable Ring Material: 925 Sterling Silver + Cubic Zirconia Size: about 18mm inner diameter (adjustable), 5mm wide. Simple unique 925 sterling silver finger ring, with micro pave AAA zircon safety pin, this stackable ring will make you different. Sweetiee is specialized in fashion jewelry devoted to produce Shiny and exquisite, suitable fashion accessories for young girls and women. Every piece of Sweetiee is elegant and decent, suitable for business activities, parties, wedding, Valentine's Day, Thanksgiving, Christmas, etc Hypoallergenic 925 sterling silver allows for comfortable wear, especially for those with sensitive skin. It is packed in nice box, perfect gift for every single memorable day.