With the help of the set, the cars can learn about teamwork as the three construction workers control the 3 vehicles. The bulldozer takes the rock to the site, the crane grabs it and places it on the chute, where it slides down into the concrete mixer. When the job is done, reward the construction workers with a delicious pizza for a job well done! Learning for little builders with toys This construction site set provides hours of creative fun, as there is plenty to do for little fingers. The rotating crane can be opened and folded on the grapple bucket. The drum of the brightly colored, steerable concrete mixer really rotates. Sensory stimulation is provided by the vehicle's 3 different siren sounds and flashing lights.