Double Heart Swirl Ring especially made to be printed in Sterling Silver. Available in 7 sizes: US Ring Size - Inside diameter: 7-(17.3mm) 8-(18.1mm) 9-(19.0mm) 10-(19.8mm) 11- (20.6mm) 12-(21.4mm) 13-(22.2mm) If you would like an engraving please add upto 20 characters in the box labeled "Your remark for the designer".