Large Roro Trent900 turbofan engine model 3D vertical volume wooden engine assembly toy for boyfriend

Product introduction: Aircraft vortex fans that can be placed on the desktop 
 
 Rolls-Royce's same kernel assembly version/number of parts 40+/educational large size/large metal bearing/speed control chip/3000 mAh lithium battery 

 Rotal speed: 1000 rpm/M 
 Size: 47*25*20CM 
 Product weight: 1.5KG 
 Product material: PLA+ 
 Production process: FDM