Features: Upgraded Extruder: This upgraded extruder for Voron M4, the housing is printed with PETG, durable and not easily deformed. Please note: Motor is not included. This 3D printer part is suitable for Ender3, Ender3 pro, Ender3 V2, Ender-3 Max, Ender5 pro, CR10-V2, CR-10S pro, CR-10MINI, CR-10S5. If customers want to use and would like to design a mounting bracket, then this extruder will be suitable for any 3D printer with FDM forming principle. Our extruder is better than other extruders at printing effect, and the printing surface is smoother and more delicate. It makes loading the filament easier and smoother without worrying about the filament being scratched or broken. The extruder runs smoothly, the engaging gear torque is large, the consumables are not easy to slip; it is easy to adjust the consumables to advance and retreat. Easy to Install: Method 1: Use firmare to modify the pulse of the extruder: #define DEFAULT_AXIS_STEPS_PER_UNIT {80, 80, 400, 692 }; Method 2: Send the forG code (can be sent by the slicing software command): M92 E692 M500. If it is found that the extrusion direction is opposite, change the motor line order 1-4; exchange 2-3. Specification: For: Ender3, for Ender3 pro, Ender3 V2, Ender-3 Max, Ender5 pro, CR10-V2, CR-10S pro, CR-10MINI, CR-10S5 Main Material: Metal Package Size: 17 x 7 x 3cm/6.7 x 2.7 x 1.1in Package Weight: 95g/3.3oz Packing List: 2 x Synchronous wheel 2 x Extrusion wheel 2 x Miniature bearings 2 x One-sided flange bearing 5 x Brass embedded nut 1 x 3MM PIN 1 x 5MM PIN 1 x Bowden Gas Connector 1 x 1 x Full set of screws 1 x Closed-loop synchronous belt 2 x Orange small buckle 1 x Spring + Washer 1 x Sticker Set