Having the front end of my car painted soon and want the front to look as new as poss if i get a set of these how do i get them stammped up as mine are a little groggy

http://cgi.ebay.co.uk/NEW-GENUINE-FO...QQcmdZViewItem

has anyone used them or got them before have seen them ages ago but only now thought about using them now im freshening up the front of the car?