Features Superior Durability with Aluminium Construction - The Upgrade Extruder features a robust aluminium design that enhances wear resistance and ensures long-lasting performance for your 3D printing needs Enhanced Stability for Consistent Feeding - Experience improved feeding stability with this upgraded extruder, minimizing tangling issues for smoother operation during your printing projects Premium Quality Spring for Reliability - Equipped with an imported abrasive yellow oxide spring, this extruder maintains stable elasticity and durability, ensuring it won't distort over time Versatile Application Across Materials - This drive feed kit is not only ideal for 3D printers but also suitable for automotive painting, wood, metal, and glass applications, making it a versatile tool Convenient Accessories for Easy Use - Comes with small wrench accessories that simplify disassembly, making maintenance and adjustments hassle-free for all users Features: 1、Compared with the original version, the upgraded version of the extruder uses aluminum, wear-resistant and , and the gear does not tangle easily. 2、The extruder structure spring has also been upgraded, and the imported abrasive yellow oxide spring is used, which has stable elasticity, durability and durability, and will not distort or lack elasticity after a few months of use. 3、Compared with the original version, the feeding of the upgraded version of the extruder is more stable than that of the original version. 4、Provide users with small wrench accessories for easy disassembly. 5、Manufactured from premium aluminium materials for a long service life and stable performance. Specification: Conditon: 100% Item Type: Extrude Kit Item Model: for MK8 Bowden Material: Aluminium Color: As Pictures Shown Consumables Diameter: Approx. 1.75mm/0.07in Compatible Model: Fit for 3D CR-7 / CR-8 / CR-10 / Ender-3 / Ender-3S / Ender-5 Package List: 2 x Aluminum Block 1 x Spring 1 x Pneumatic Connector 1 x Gear 1 x Pin 1 x Rivet 1 x Bearing 1 x Blue Snap 4 x Small Wrench 8 x Screw 1 x Gasket Package List 2 x Aluminum Block 1 x Spring 1 x Pneumatic Connector 1 x Gear 1 x Pin 1 x Rivet 1 x Bearing 1 x Blue Snap 4 x Small Wrench 8 x Screw 1 x Gasket