This items only include Fan Rotor+Ducted Housing
Please pay attention that this items without motor.
If you need the ducted fan system with motor, please visit below link:
https://www.dwhobby.com/products/aeorc-patended-product-ducted-fan-system-edf-for-jet-plane-27mm-30mm-35mm-40mm-45mm-50mm-55mm-64mm-70mm-with-brushless-motor