These are NOT A pandoraproduct or manufactured by them however they are compatible with the popular pandorastyle (also known as European style) bracelets and charms. These charms are notplated and are completely sterling silver so they will need to be polishedoccasionally to bring back their shine. We recommend a paste sterling silvercleaner and cloth, not a dip cleaner. If charm is personalized in anyway, the item can not be returned.