Ursa Mammoth Tooth Pocket KnifeDouble sided prehistoric woolly mammoth tooth handle and 9CR12MOV steel "Black Bear" by Ursa Knives pocket knife. The knife closed is 3 7 8 and open 7 in length. Fossil mammoth tooth is found in the cold northern regions of Alaska, Canada, Russia, and Siberia and may range in age from 10,000 to 200,000 years. Natural colors are found in cream, tan, brown, and gray. Note that natural colors may vary from photographed selection. Ursa mammoth tooth