2.5″ Bronze Threaded Ring Set
Each threaded ring set consists of one male, and one female thread. These ring sets are used to make anything you would like with a secured lid such as canisters, lidded boxes, and urns etc…
The inside measures 2 1/16″ with an overall height of 3/4″
Bronze Threaded Ring Set
https://nilesbottlestoppers.com/product/threaded-inserts-for-urns/