Prehistoric Mammoth Tooth Dog Tag PendantEach prehistoric woolly mammoth tooth rectangle pendant is set with mixed rhodium plated and oxidized sterling silver. Each rectangle dog tag is reversible and is a one of a kind due to natural patterning and unique colors. Pendant measures approximately 1 7 8 tall X 3 4 wide. *Pendant does not include chain. Mammoth tooth ranges in age from 10,000 to 200,000 years, and is found in the cold northern regions of Siberia, Russia, Alaska, and Canada.