Good ring? What does it look like?
Light green plastic, not ,mixed thoroughly which creates a marbling. The top is a circle with a relief lantern set in it. The band is open on the bottom and is very flexible allowing for me (ring size 11 IIRC) to wear it after a few seconds of careful adjustment.
I take off a grade for the small band and give it a B.
The Mosaic ring is still my favorite.
Another Doper posted a pic in one of these threads but I can’t recall which one.
And does it come with a battery? 'Cuz without a battery, it’d be kinda useless.
My shop owner likes me (I’m putting his kid through college), so I snagged two!
AFAIK DC has only made one full size battery. It, and a ring not made to be worn, came for $300.
BTW–check out my sig.

What’s the catch? Was the battery not fully charged?
The main problem was that it was only a replica. Previews was honest enough to say that the $200 Kryptonite was a replica and warned us it would not work on Kryptonians*. There was no such warning with the battery.
*Yes, Previews really put a disclaimer in the ad. It was pretty funny. But the tops is still the copy in a listing for Addams Family shirts.
Morticia Addams T-shirt “Est Moi. C’est magnifique, non?”
Gomez Addams T-shirt “Tish! That’s French!”
My Legion of Super Heroes Flight Ring’s box has a warning.
Warning: This ring does not enable wearer to fly.