If you are looking forward to an anniversary gift for mom, daughter, granddaughter, girlfriend, lover, wife, friends or families, this wedding ring sets will be the perfect gift for Valentine's Day, Birthday, Mother's Day, Anniversary, Thanksgiving and Christmas.No any allergenic material. Best Wedding Engagement Anniversary RingsEqually gorgeous with a dinner dress, or spectacular in casual wear.Size 6: The inner circumference is about 51.9mm, the inner diameter is about 16.5mm, and the error is about 1mmSize 7: The inner circumference is about 54.4mm, the inner diameter is about 17.3mm, the error is about 1mm Size 8: The inner circumference is about 57mm, the inner diameter is about 18.1mm, the error is about 1mmSize 9: The inner circumference is about 59.5mm, the inner diameter is about 18.9mm, the error is about 1mm Size 10: The inner circumference is about 62.1mm, the inner diameter is about 19.8mm, the error is about 1mm