If you don’t want them to tarnish, you should apply a waterproof clear coating.
If you do not also purchase a soap pump, you are getting a Mason jar lid with a 27mm hole in the middle.
Solid copper soap hole lid for Regular Mouth (2 3/8″ internal diameter) Mason jars.
Copper will patina or tarnish over time. The threading isn’t great, which makes them a bit hard to screw on and off.
This product is one lid adapter, not the soap pump itself. We sell the soap pumps separately so you can choose which pump and which lid adapter you want.