Features: 100% Brand new and high quality. Enhanced upgrade kit for 3D printer models such as Ender 3 / Ender 3 Pro / Ender 5, which improves the performance and reliability of 3D printers. Upgrading the aluminum extruder (right) can provide a more reliable thread feed. Two high-temperature silicone sleeves prevent heat from entering the printouts, keeping the heat away from the printouts and improving print quality. 4 flat compression springs improve the rigidity and stability of the print bed. PTFE tube is ready to be installed on your printer, does not need to be cut, has excellent corrosion resistance, strong insulation resistance, anti-aging properties, etc., suitable for 1.75mm consumables. Two NEMA17 stepper motor dampers include one for X-axis stepper motors and one for Y-axis stepper motors to improve the response time of the stepper motor system, reduce resonance, and reduce noise. The stepper motor degaussing device with power cord effectively eliminates the vibration pattern generated during the printing process and provides smoother movement. Specifications: Condition: 100% Brand New Color: as shown Material: Metal + Plastic PTFE tube inner / outer diameter: 2 mm / 4 mm PTFE Hose Length: approx. 100cm Degaussing Device size: approx. 4 * 3 cm Degaussing Device Power Cord Length: approx. 11.5 cm Package Included: 1 x Aluminum Exturder Assembly 2 x Silicone Sleeve (blue) 1 x PTFE Hose (blue) 4 x Flat Head Compression Spring (yellow) 2 x Stepper Motro Dampers 2 x Stepper Motor Degaussing Device (with Cable) Notes: Please allow slight dimension difference due to different manual measurement. Due to the light and screen setting difference, the item's color may be slightly different from the pictures.