The Mould King radial engine building kit from the Engines series offers a challenging building experience for engineering enthusiasts aged 14 and over. Comprising 3,089 precise clamping bricks, it creates a detailed model of a classic aircraft radial engine. The model is fascinating due to its mechanical functions, such as a rotating propeller and visibly designed cylinders. Thanks to the sturdy stand, the finished construction model can be displayed securely. This building kit is ideal for experienced model makers and collectors who enjoy complex mechanical structures.