Flip Force is an innovative new toy car line that features double-sided cars. Each car is about 3.5 inches. On one side it might be a police SWAT vehicle. But when you turn it over, the wheels and sides fold down to reveal a new vehicle, such as a fire truck. To make the transformation, kids pick up the tab on the back of the car and turn the car over. Both sides of the car are free-wheeling. There are a variety of Flip Force cars available in different themes: hot rods, off-road destruction, and more. Each is sold separately.