A rich laboratory for introducing children to the world of engineering and mechanics. A unique kit for experiencing fantastic adventures and discovering the secrets behind transmission mechanisms with 10 models to be built, including a fantastic jeep. Contains over 200 components, including: differential, rack, right-angle gearbox, flat and conical cogwheels, tyres and rims. The detailed illustrated manual contains instructions for assembling the models and lots of other in-depth information on engineering and mechanics. With the free Mechanics Laboratory app, the child will be guided step-by-step in assembling the models with animations and 3D interactive models.