This is a real fossilized tooth from an extinct species of Mackerel shark (otodus obliquus)!! They are roughly 60 million years old and were found in Morocco. This species was once one of the planet's apex predators and specimens have been found in Africa, Asia, Europe and North America! Fully grown, these sharks would have reached roughly 9-12 meters in length.
These fossil teeth are 3-4cm long, and can be shipped worldwide!