Features 1、SMOOTH APPEARANCE: This 3D printed red metal extruder is made of premium metal with a sandblasted oxidation finish for a smooth and beautiful appearance 2、COMPLETE ACCESSORIES: Kit includes all necessary screws and parts to replace your weak plastic extruder directly, screw on the new metal extruder and you're ready to print 3、NO FRACTURE: This extruder realizes true seamless connection, remove the pneumatic joint on the basis of the old version, to prevent the pneumatic joint box PTFE pipe connection rupture 4、APPLICABLE MODEL: Double gear extruder is suitable for Ender 3, for CR 8, for CR 10 series, widely compatible 5、CORROSION RESISTANT ALUMINUM ALLOY: 3D printer extruder is made of excellent aluminum alloy material, light weight, possess good strength and good corrosion resistance Specification Item Type: 3D Printer Extruder Material: Aluminum alloy Applicable Model: For Ender 3, for CR 8, for CR 10 series Color: Red Package List 1 x Extruder 1 x Bearing Accessory 1 x Gear 1 x Extrusion Pin 1 x Connector 1 x Washer 1 x Extruded Spring 8 x Screw