An incredible new laboratory which helps you to understand how crane trucks work and come into contact with principles of mechanics and engineering. Including more than plenty of components, with a differential, cogs, rods, panels and lots more. A comprehensive illustrated manual guides the child step by step in constructing the models and teaches the basics of mechanics, engineering and how levers and gears work. ● More than 250 interchangeable components and an instruction booklet to guide you step by step ● Download the free app with interactive 3D instructions ● Made in Italy