Features 1、APPLICABLE MODEL: The extruder is suitable for Anet A8 3D printer, small and compact, simple and fast assembly, with good compatibility. 2、APPLICABLE MATERIAL: The 3D printer extruder supports various 1.75mm printing filament such as PLA and ABS, with a wide range of applications. 3、STEPPER MOTOR: The extruder is designed with 42 step motor, with fast shaft speed, ensuring efficient and safe operation of 3D printer. 4、NOZZLE AND HEATER: Equipped with standard 0.4mm nozzle, 12V 40W heater, with a length of about 1.5 meter (4.9ft) to ensure accurate printing. 5、METAL STRUCTURE: The extruder is made of excellent metal, with high hardness, wear resistance, no deformation and long service life. Specification Item Type: 3D Printer Extruder Application: Suitable for Anet A8 3D printer Nozzle Diameter: 0.4mm (standard) Heater: 12V 40W Motor Model: 42 Stepper Motor Shaft Speed: 20-120mm/s Nozzle Flow: About 24cc/h Package List 1 x 3D Printer Extruder