Upgraded Aluminum Dual Gear Pulley Dual Drive Extruder Kit

• New Double Gear Extrusion Mechanism.
• All-metal aluminum alloy, High quality dual gear extrusion, stable and durable.
• Upgraded: Perfect replacement for Creality 3D Printers CR-10/ CR-10S/ CR-10S Pro/ Ender 3/ Tornado, etc.
• Double gear extrusion mechanism, high extrusion force, ensuring smooth feeding.Better pressure pushes the filament into the printer nozzle.
• This Kit NOT include the stepper motor and instruction manual, you need to DIY.