The Mould King Rotary Engine building kit brings the fascinating technology of a rotary piston engine directly to your building table. With 1130 precise building blocks, you create a detailed functional model that makes mechanical processes easy to understand. The kit is compatible with common building blocks from other brands and impresses with movable components such as a chain, gears, and levers. The finished model is ideally suited as a sophisticated collector's item for tech enthusiasts and offers an exciting construction experience when rebuilding complex engine technology.