ITEM NAME:Cr10 Pro Aluminum Upgrade Dual Gear Extruder Kit for Cr10S Pro Reprap Prusa A9G8 Cr10 Pro Aluminum Upgrade Dual Gear Extruder Kit for Cr10S Pro Reprap Prusa A9G8 Item Type: Extruder Model Number: CR-10S PRO Material: aluminum alloy Suitable: For CR-10, For CR-10S, For Ender-3, For Ender-3 Extruder Type: Bowden Extruder Usage: 3D Printer Parts Filament: 1.75mm Color:Red Advantage: 1. Double gear extrusion mechanism, high extrusion force, ensuring smooth feeding 2. The aluminum alloy driver is supplied with CR-10S PRO. It can also be installed in Ender-3, Tornado stable and durable. 3. All-metal aluminum alloy, diy aluminum block, need to be assembled by itself 4. High quality and 100% brand new 5. Better pressure pushes the filament into the printer nozzle Package Contents: 1 * Extruder kit and screw package Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.