Material: 925 Sterling Silver plated Platinum. Packing Size: 66*67*42mm. Weight: 4.9g. Size: The inner diameter is about 17mm (0.67inch) (opening), and the widest point is about 9mm (0.35inch) Elegant for all occasions, which can fit for most of your dresses and other jewelleries.Perfect gift for lover, girlfriend, fiance, wife, mother, couple, Valentine or just a friend,etc.