If you are from Michigan you know what this is. If you are not from Michigan, you should know. Fordite, lovingly referred to as "Detroit Agate," isn't a stone at all but a thick layering of paint from the Ford Motor Company paint factory. The cross section of fordite in these cuff links shows the layers of paint accummulated over the years. Cool right? These cuff links are the perfect gift for that guy who 1) is in the know and 2) wants to let everyone else know he is.