·【Rotary Engine Scale Model】This Aircraft engine building block kit compatible with mainstream building blocks, based on the prototype of Rotary engine, as a total of 2177 + pieces bricks. Compatible with most similar building blocks on the market, with strong scalability.

·【REALISTIC MODEL THAT WORKS】 Featuring a working motor and battery box, this model delivers authentic rotary engine mechanics, making it an ideal gift for sports car fans and engine engineers.

·【High-Quality, Safe Materials】Mould King Rotary Engine Kits made from ABS materials and tested for quality control to ensure compliance with safety standards. No smell, no burr, smooth and eco-friendly.

·【Building Science Educational STEM Toys】This model engine kit promotes hands-on learning, enhancing mechanical understanding and engineering skills through its detailed assembly process, ideal for science and technology enthusiasts.

·【Follow the steps】This mini engine toy set contains many building blocks, all components are sorted and carefully packaged so that they are not lost. Installation instructions are included so you can start with each step.