This qaba truck engine toy set is an excellent way to introduce your children to the fundamentals of equipment maintenance. Various fun activities and many "repairable" parts provide hands-on learning, imaginative role-playing, and confidence-building. Each component can be taken apart for "repair" and then reassembled using screw fasteners. You'll enjoy teaching kids about engines and watching them perform tasks like opening the engine cover, replacing spark plugs, and removing the motor.