When making a purchase, please choose a design in the message to the seller. If you don't have a selection, the set will be sent randomly. Recommended for children aged 3 and up Material(s ): Plastic Parts/Metal Launch cars speeding around a single-lane race track. High Quality Cast Design: Built to survive, these rugged cars can handle high speeds and thrilling stunts with ease. Easy to build and encourage imaginative play with vehicles.