Silver multi-band rings

What’s the story?
I made various of these whilst working on a commission for a client. You can see the finished piece here as well. These were designed to get the size and the configuration right before we did it all again in gold.

Details: The larger 15mm wide and the smaller, 12mm.

Sizes: Large is size 0, and the small is an M.

Can they be sized?: Not unless you catch me in a very good mood.