Sterling Silver and Motor Agate Fordite Oval Cufflinks and Tie Tack Set #1823Lapidary cut, matched multicolor Type 3 Motor Agate (Fordite) cabochons set in cast sterling silver, with our signature mini hammered finish. The cufflink backs are fixed, and v bar style. The matching tie tack has a high quality, 8mm locking guard pin and locking clutch back. The salvaged and re purposed material set in this piece began as a hunk of cured auto paint overspray that was harvested from a major auto plant many years ago! Head dimensions