Megableu model set Motor Lab Build and learn the working principles of an engine with this model set. It is a simplified model of a real engine. The set contains all the necessary tools and parts to assemble the motor. It also contains an assembly and information booklet that not only guides you step by step during the construction of your bike, but also contains extra information about the operation of engines. Specifications: Color: blue Gender: boys Material: plastic, steel Age: from 10 years old Operates on 2 AA batteries Batteries not included.