Feature:1. INCLUDED PARTS: Necessary 3D printer upgrade parts, including leveling springs, hand twist leveling nuts, PTFE tube, tube cutter and extruder accessories.2. APPLICABLE MODEL: Suitable for Ender 3, for Ender 3 Pro, for Ender 3 V2, for Ender 5, for Ender 5 Plus, for Ender 5 Pro, for CR 10, for CR 10 V2, for CR 10 V3 printer models.3. EXTRUDER ASSEMBLY: The aluminum alloy extruder is easy to assemble, loading the filament more smoothly, not easy to worry about the filament being scratched or broken.4. PTFE TUBE: Equipped with 1 meter PTFE tube, designed for 1.75mm filament, high temperature resistant, allowing more accurate feeding and retracting motion.5. LEVELING NUTS: Equipped with 4pcs hand twist leveling nuts with large torsion, which can be twisted tighter, and it is easier to fine tune the 3D printer hot bed.Specification:Item Type: 3D Printer Extruder SetMaterial: Aluminum Alloy, Stainless SteelTube Length: Approx. 1 meter / 3.3ftApplicable Model: For Ender 3, for Ender 3 Pro, for Ender 3 V2, for Ender 3 MaxFor Ender 5, for Ender 5 Plus, for Ender 5 ProFor CR 10, for CR 10 V2, for CR 10 V3.Package List:1 x Tube Cutter1 x Tube4 x Leveling Wheels11 x Screws5 x Springs1 x Bearing1 x Gasket1 x Connector1 x Buckle5 x Extruder Accessories