Item Type: Extruder KitMaterial: Aluminum AlloySize: Approx. 73 x 41 x 36.8mm / 2.9 x 1.6 x 1.4in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1DUAL GEARS: Double drive gear is used, the gear ratio is 3:1, with high accuracy, recommended to use 385 in step E, which is applicable to all 1.75mm consumables. 2SIMPLE ADJUSTMENT: Supports adjusting the tightness of the thumbscrew to suit printing, and 2 drive wheels grab the filament from both sides to provide a stable inlet. 3BOTTOM SLOT MOUNTING: The extruder can be installed with a bottom slot for bourdon tube slot installation, which is compact and convenient for installation and replacement. 4ALUMINIUM ALLOY: The extruder is made of aluminum alloy, lightweight and corrosion resistant, and lighter head to ensure that the printer can move faster and swing less. 5OTHER ACCESSORIES: Equipped with fasteners such as heating block, nozzle, spring and gasket, the extruder kit is easy to install and suitable for Ender 3 and for CR10 printer.