Upgraded Replacement CR10S Pro Dual Gear Extruder Dual Drive Gear Aluminum mk8 Metal Extruder Kit for Creality 3D Printer CR10, CR-10 S4, S5 Ender 3, Ender-5 and Tornado 3D Printer (Bowden)

Suitable: For 1.75mm CR-10, For CR-10S, For Ender-3, For Ender-3 PRO
Double gear extrusion mechanism, high extrusion force, ensuring smooth feeding,
This aluminum alloy driver is specially designed for CR-10S PRO.But It can also be installed in Ender-3, Tornado, CR-10 and ender 5... stable and durable.
All-metal aluminum alloy, diy aluminum block, need to be assembled by itself
Better pressure pushes the filament into the printer nozzle