Experience sophisticated model building with the Mould King radial engine building kit. This detailed set from the Engines series consists of 3,089 building blocks and replicates a classic radial aircraft engine. The model impresses with its mechanical design featuring moving parts such as pistons, gears, and a large black and red propeller. Mounted on a sturdy stand, this challenging construction set is ideally suited as a display piece for technology enthusiasts and collectors alike. The assembly process provides a deep understanding of how classic aircraft engines work.