These are from China though we buy them from dealers in the USA. Generally 3/4 of an inch to 1 1/2 inches long. There's a good chance that your tooth or teeth will be chipped. Probably chipped off in a fight with a dinosaur. A big dinosaur. "Mosasaurs breathed air, were powerful swimmers, and were well-adapted to living in the warm, shallow inland seas prevalent during the Late Cretaceous period. Mosasaurs were so well adapted to this environment that they gave birth to live young, rather than returning to the shore to lay eggs as sea turtles do."