Features 1、Full assembled extruder kit for Creality Ender-3/Ender-3 pro 3D Printer. 2、Includes a 0.4 nozzle, a cooling fan, double brower fan, a aluminum heating block, etc. 3、High quality material, fine workmanship, great for use. 4、All metal shell, strong wear resistance, stable operation. 5、High precision extruder can be a great accessory for printer. Specification Features: Full assembled extruder kit for Creality Ender-3/Ender-3 Pro 3D Printer. Includes a 0.4 nozzle, a cooling fan, double brower fan, a aluminum heating block, etc. High quality material, fine workmanship, great for use. All metal shell, strong wear resistance, stable operation. High precision extruder can be a great accessory for printer. Specifications: Voltage: 12V/24V(optional) Nozzle Size: 0.4mm Compatibility: For Ender-3/Ender-3 Pro 3D Printer Item Weight: 248.5g/ 8.8oz Package Size: 13.5 * 11.5 * 8cm / 5.3 * 4.5 * 3.1in Package Weight: 312g / 11.0oz Packing List: 1 * Extruder Kit Package List 1 * Extruder Kit