William
a frontier pad is a twist of metal ribbons, the edge does the cleaning - it is not abbrasive
http://www.exploreproducts.com/big45...un-cleaner.htm
here is a detail from the one pic you can see there are no marks on the original surface where it has been cleaned, the original color is not damaged- I personally have not seen a scotch bright that did not leave fine scratches under magnification, i know a lot of folks like them.
I still need to get into the engraving with soft brush
