Manufacturers can assemble 15 different vehicles, including an off-road vehicle with functional front and rear steering and suspension! Children can build the 3 models indicated in the package leaflet or create their own vehicles. 15 different models to be built using the assembly instructions (only one model can be built at a time)REAL ERGONOMIC TOOLS – For an authentic construction experience, use the 2 practical tools, wheels, real metal nuts and bolt. TOY S.T.E.A.M. – By assembling the models of this building kit, children will discover how the principles of science, technology, engineering, arts and mathematics are applied in a practical way. They will strengthen their hand-eye coordination, ability to solve problems and fine motor skills, while using their is (all included) to build 15 vehicles, one at a time. Ergonomic tools for comfort of construction and precise mounting.