Product information:

Material: titanium steel, shell
Style: European and American
Applicable gift-giving occasions: birthday
Style: Women's
Inlaid material: not inlaid
Color: gold (pre-sale of ring 6)
Ring number: No. 6 (inner diameter 16.5mm), No. 7 (inner diameter 17.2mm), and No. 8 (inner diameter 18.2mm)
Ring surface width: 0.4cm
Gram weight: 1.1g/piece.