Features: Brand new and high quality Full assembled extruder kit for CR10, CR-10S, Ender-3 3D Printer. Includes a 0.4 nozzle, double cooling 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: Material:Plastic+Metal Type:12v CR10/24v Ender3 12v CR10: Material: Aluminum & Stainless Steel & Brass Installation type: external thread connection Scope of application: 3D printer Nozzle size: 0.4mm Throat length: 30mm Aluminum block dimensions: 20x20x10mm Operating temperature range: -40-+ 260°C (-40- +500 °F) Thermistor cable length: 1.4M 24v Ender3: Material: Aluminum & Stainless Steel & Brass Installation type: external thread connection Scope of application: 3D printer Nozzle size: 0.4mm Throat length: 30mm Aluminum block dimensions: 20x20x10mm Operating temperature range: -40-+ 260°C (-40-+500 °F) Thermistor cable length: 1.2M Package Includes: 12v CR10 Include: 1x Aluminum Block 1x heating tube (heating tube 1.4M, 12V 40W) 1x 1.75MM 0.4MM Brass Nozzle 1x M6x30mm throat pipe 1x Thermistor (1.4M) 1x fan cover 1x Silicone Cover 1x Pneumatic Connector 1x Tube (400mm) 1x4010 Axial Fan (12V 1.4M) 1x4010 blower fan (12V 1.4M) 24v Ender3 Include: 1x Aluminum Block 1x heating tube (heating tube 1.2M, 24V 40W) 1x 1.75MM 0.4MM Brass Nozzle 1x M6x30mm throat pipe 1x Thermistor (1.2M/XH2.54) 1x fan cover 1x Silicone Cover 1x Pneumatic Connector 1x Tube (400mm) 1x4010 Axial Fan (24V/1.2M-XH2.54) 1x4010 blower fan (24V/1.2M-XH2.54) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.