Two hammered sterling silver rings connected to form an infinity loop.
These are about 1mm in thickness.
I'd suggest going one size up than your standard size to account for the overlap in the rings.
[The ring next to it in the first photo is our Mandala band ring]
These rings are sterling silver and hand made to order from our workshop on the south coast of England so might take up to two weeks. They can be cleaned with a silver polishing cloth.