(Applicable models) K1/K1 Max/K1C/K1 SE/Ender-3 V3/Ender-3 V3 Plus (Compatibility Notes) This extruder version is suitable for the new integrated nozzle of K1 serie/Ender 3 V3 Plus. If your nozzle is the old split nozzle, please keep the front shell of the old extruder and replace it to this extruder, or consider upgrading to the new integrated hotend (Quality Assurance) Creality 100% official K1/K1 Max/K1C/K1 SE/Ender 3 V3 Plus Extrusion Kit With Motor. The shell of K1 extruder is made of high-quality plastic, and the extruded gears inside are made of metal material, which is sturdy and durable, achieving better creativity (High-speed and Smooth Feeding) Dual-gear direct extruder does not damage the filament, supports stable, smooth and precise filament feeding. By combining the motor, delivering 50N strong extrusion force let the filament smoothly fed in and the printing effect is not affected under long-term high-speed printing conditions (Precise Rotation Motor) Stepper motor perfectly fits with the high-strength synchronous wheel and synchronous gear, it realizes accurate constant ratio, uniform revolution, and high transmission efficiency. Small circular motor with low noise and efficient heat dissipation has large torque and high precision without losing steps (Wide Compatibility) Creality K1/K1 Max/K1C/K1 SE/Ender 3 V3 Plus Extruder works well with different filaments like PLA/TPU/PETG/ABS etc. Multi-material capability enjoys more creativity (Easy Installation Extruder) The extruder features an integrated, all-in-one design with low operational difficulty. Simply align it with the motor gear and screw holes, plug it in, secure the cables and screws, and its ready to work immediately