Upgrade Material - High quality aluminum alloy material and sandblast to surface oxidization, ensuring this red extruder is last for long term use. Stable and Durable - This upgraded red extruder has removed pneumatic joint so as to increase gear density, it makes loading the filament easier and smoother, no worries about filament scraping or breaking. Easy to Install - All you do is unbolt the old original plastic extruder and screw in the new " Red Metal Extruder ", then it is ready to print. Suitable for 1.75mm filament 3D printer MK8 bowden extruder frame. Wide Compatibility - Red extruder is suitable for Creality 3d printers accessories: Ender 3, Ender 3 V2, Ender 3 Pro, Ender-3 Max, Ender 5 / 5 Plus / 5 Pro, CR-10S, CR-10, CR 10 mini, CR-10 S5, CR-10 S4, CR 20, CR-20 Pro, CR-X. Creality Official Sales: All products are officially sold, genuine and high-quality, please rest assured to buy. All the necessary accessories are included in the package.