Click on the following link for product video demo presentation. https://youtu.be/LMvSiBDoB1I

26 teeth Extruder Planetary Gear Wheel 3D Printer MK7 MK8-5mm ID 11mmOD

3D Printer Planetary Wheel: Used to drive the feeding 1.75mm filament of extruder.
26 Teeth suitable for anet makerbot or 1.75mm consumables 3D printer
Wear Resistance: The teeth bite closely and not sharp, so that the filament will not be slipped and broken.
Fit MK7/MK8: Compatible with Creality CR-10 CR-10, S4 S5, Ender 3 Ender 3 Pro,Anet A8, etc.
Feature: Made of brass material (26 teeth).