Description: Easy to Install and Use: It doesn't affect the inherent function of the printer because it is a complete extrusion kit. With longer Extruder motor connecting cable, tools, accessories, and wiring diagram instruction for installation, easy to assemble. Direct Extruding Smooth Feed-in: Lower torque requirements on the stepper motor, reducing the possibility of the nozzle blockage when retracting filament and malfunction when loading new filament. there is more even feed-in with direct extruding than Bowden tube extruding. Stable Operation: Firmness, printing resistance, high accuracy, and no clogging. Higher Printing Accuracy: Correct the model to ensure higher printing accuracy.Overall rigid structure. High Quality: The 3D printer extruder kit is made of high quality plastic materials, which are durable, stable, premium and long time to use. Specification: Material: Plastic Size Chart: Packing Size: 12x15x4cm/4.72x5.91x1.57inch Package Includes: 1 Set 3D Printer Extruder Kits Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.