Ujjdwiurgh Dual Gear Extruder, Compatible with for 3 CR10-10 Pro -10S Aluminum Drive Feed, for 3D Printer

aluminum alloy, High quality dual gear extrusion, stable and . Due to batches, the original motor shaft of the 3 pro printer may not be perfectly fit for our dual gear. After correct installation, although the gear on the motor shaft looks a little higher than the shaft of the motor, it not loosen after being. Of course, you can replace the full size of 42mm high stepper motor if the stock motor shaft is too short to Install the gear. UPGRADE: Perfect replacement for 3D Printers -10/ -10S/ -10S Pro/ 3/ , etc. This Kit NOT include the stepper motor and instruction manual, we need to DIY.