The Megalodon Sharks tooth belt buckle is cast in Sterling silver It fits 1.5 inch belts. I finish this buckle with a high polish or a brushed satin finish. The advantage of the satin finish is it is more understated than the polished finish and doesn't show the scratches or fingerprints as quickly. Over time it will develop the same patina as any sterling will. The Polished version has a high shine and sparkles. There is no question it is sterling! With time this will develope into the beautiful patina of old sterling. This silver buckle was molded from an actual fossilized sharks tooth found in the Tampa area. It must have been a monster! Shown on a 1.5 inch (38 mm) belt sold separately in the accessories or save 5.00 and order the belt with the buckle