70mm Changesun EDF Unit without Motor

This is a change sun EDF Unit without motor

Specification
* Outside Diameter : 71mm
* Material : Carbon Fibre Reinforced Nylon (Whole Unit)  
* Rotor Diameter : 68mm , 4 blades
* Max RPM : 50000 RPM
* Motor Shaft : 3.0mm & 4.0mm
* Working Voltage : 11.1v - 22.2v ( 3 - 6S )
* Motors required : Inrunner & thin Outrunner Brushless Motor 2500 - 4300Kv