The Mario Kart Toy Vehicle 4-Pack is a collectible set of 4 fan-favorite characters from the Mario Kart series. Each toy car is 3 x 1.25 x 2 inches in size and made of plastic, featuring characters like Mario, Donkey Kong, and Yoshi. This modern-style set is suitable for kids aged 36 months and up, with no power source required for operation. The toy vehicles are part of the Hot Wheels Racing series, perfect for young boys who enjoy imaginative play with toy cars.