Maybe I got an older set because mine are definitely copper. I have had them for about two years. David Lylis 69 TR6 CC26160L 60 TR3A TS74461LO **************Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos. (http://autos.aol.com/used?NCID=aolcmp00300000002851)