These are super cute 70s deadstock McDonalds rings! They are a ring size 4, which I believe were for kids, but they are adjustable. For reference, I wear a size 6 & I can bend it open, to accommodate my size & can go bigger to even fit my thumb.
The quality is a pretty sturdy weight & thickness. Gold finish, but not real gold obviously :)
This is a great nostalgic piece to add to any collection