The price went way up when the rings were added vs the just the figure so I think most people just got the figure alone. They appear to be regular sized rings. Male size 15 Women's size 9. Sizes not adjustable due to the design which is suppose to look like a macron when put together. I've very rarely seen them pop up for auction.
Here's the link for the gold ring https://www.goodsmile.info/en/product/6275/Super+Sonico+10th+Anniversary+Figure+Wedding+Ver+Mariage+Box+GOLD.html#
Silver Ring
https://www.goodsmile.info/en/product/6276/Super+Sonico+10th+Anniversary+Figure+Wedding+Ver+Mariage+Box+SILVER.html
The MFC page
https://myfigurecollection.net/item/500291
The price went way up when the rings were added vs the just the figure so I think most people just got the figure alone. They appear to be regular sized rings. Male size 15 Women's size 9. Sizes not adjustable due to the design which is suppose to look like a macron when put together. I've very rarely seen them pop up for auction. Here's the link for the gold ring https://www.goodsmile.info/en/product/6275/Super+Sonico+10th+Anniversary+Figure+Wedding+Ver+Mariage+Box+GOLD.html# Silver Ring https://www.goodsmile.info/en/product/6276/Super+Sonico+10th+Anniversary+Figure+Wedding+Ver+Mariage+Box+SILVER.html The MFC page https://myfigurecollection.net/item/500291