Encourage your kids to explore science and engineering with the RaceYa Radio-Controlled Race Car. This customizable toy motivates kids to use their imagination and unleash their creative genius. Kids can change the performance of the car by switching parts such as gears, wheels, shocks and body length. This allows them to play with physics concepts like friction, torque, kinetic energy and weight distribution at the same time. They can even turn the car into a racing dragon, a princess castle on wheels and anything else imaginable. Ready straight out of the box, RaceYa includes a car with a reversible gear box, two sets of wheels and a controller. Likewise, one set of wheels is smooth while the other is rugged. It also comes with a booklet that offers ideas and insights.