12V Motor Mini Turbojet Functional Fan Blades Engine Model Kit Christmas Gift

  
12V Motor Mini Turbojet Functional Fan Blades Engine Model Kit Christmas Gift. Prototype: J-20 with Emei WS-15 Process: 3D Printing Parts: 300+3 Materials: Alloy rotating shaft + photosensitive polymer Dimensions: 331114.5cm Power: Dry batteries.