Feature: 1. Alumina is metal aluminum with high hardness, not easy to be corroded, and high temperature resistant 2. Come with good wear resistance, no deformation, the surface is anodized red, can be used for a long time 3. Accurate size hole position is easy to install, convenient to replace. High temperature performance bring stable shrinkage 4. Adjustable filament handle, easy to install filament. Possess strong stability, fixability, applicability, flexibility 5. Possess hardened tool steel, CNC accuracy cutting gears, excellent extrusion control and lightweight aluminum body Specification: Item Type: Extruder Kit Material: Alumina + tool steel + PTFE Models Used: For Ender 3, for Ender 3 Pro, for Ender 3 V2, for CR 10(will not directly fit for CR10 V2, V3), for CR 10S, for CR 10 mini, for 4CR 10 S4, for CR 10 S5, for CR 20, for CR 20 Pro. Package List: 1 x Mounting Plate1 x Extruder1 x Blue PTFE Tube13 x Screw1 x Brass Nozzle4 x Nut8 x Gasket1 x Spring2 x Wrench1 x Gear Parts2 x Mounting Plate Components1 x Line5 x Cable Tie1 x Orange Buckle1 x Metal Connector1 x Black Accessories1 x White Plastic Accessories1 x Small Black Fixing Piece