In most versions, the Teenage Mutant Ninja Turtles are created when four baby turtles are exposed to radioactive ooze, transforming them into humanoids. They fight evil in New York City, where they reside in the sewers. The TeenageMutant Ninja Turtles were named after Renaissance artists. The original names of the Ninja Turtles were Leonardo, Donatello, Michelangelo, and Raphael. Playwheels has created a selection of scooters, skates, skateboards and protection that represent their favorite characters from TMNT.