Product Imformation Material: 925 sterling silver Weight: 3.38g Ring Width: 5.9mm Origin: China Ring Size Guide 5: circumference49.3mm diameter15.7mm 6: circumference51.9mm diameter16.5mm 7: circumference54.4mm diameter17.3mm 8: circumference57.0mm diameter18.1mm 9: circumference59.5mm diameter18.9mmMeasure according to the product size chart. Storage instructions Do not let the product come into contact with cosmetics and chemicals Clean the product regularly with diluted toothpaste or dishwashing liquid, then rinse with water and dry. Store in a box or a bag when not in use NOTE Avoid heavy blows, fire and corrosive chemicals The product is safe for skin to use. Due to the difference in the display of the terminal, there may be slight color difference between the product image and the actual product.