I got my aro ring from Amazon, it's ceramic and incredibly durable. (I might've dropped it a few times)
Here's the link for anyone who wants it! It comes in black and white so it can be an aro or ace ring depending on which one you want.
https://www.amazon.com/dp/B077ZWPV7R?psc=1&ref=ppx\_yo2\_dt\_b\_product\_details