How does toy car mechanism work? What makes a play car move? How do gears and other parts interact? This amazing car building set helps your curious child answer these questions. Quercetti Isotta Discovery Car Building Set by the award winning Italian toy maker, Quercetti, is a unique toy for beginner engineers. This exciting construction kit from Educational Toys Planet lets preschool kids build their own toy car, observe its mechanism, and play with it. The Isotta car set comes with a large car frame, 4 car wheels with clips, and 5 pre-assembled see-through parts that show the inside gears, pistons, cylinders and other moving parts. Kids will love learning how to assemble a play car that really wheels around! Build and take apart your discovery car as many times as you like! The Quercetti Isotta Discovery Car Building Set is a great way to develop engineering curiosity and enhance motor skills.