Why are there spots on the metal rings they were new in the package and they won't come off

Why are there spots on the metal rings they were new in the package and they won't come off

this belongs in ask n get answer thread...there is no need to make a new topic for such minor question..

EDIT:if there is already a person posted here..there is no need for another post...yet...the same thing is repeated...no need to bump the thread again...

^ Same as he said.
Moderators please look forward on this topic.