Feature 1 Stable Working: 3:1 gear ratio ensures stable filament feeding without slipping, which also enables better printing effect. 2 Practical Uses: For Creality CR10, for MK8 V6 CR10 Ender 3 series, for Wanhao D9, for Anet A8 E10, for Geeetech A10, etc. 3 Broad Matching: The fixing spring allows for simple replacement of 1.75mm PLA, ABS, PETG, TPU, nylon, carbon fibre, wood. 4 Great Material: The steel material has been through fine CNC hardening for stable working performance and high efficiency. 5 Better Designs: Transparent design is not only very beautiful, but also largely simplifies the use and maintenance.Item Type: 3D Printer ExtruderGear Ratio: 3:1Filament Diameter: Approx. 1.75mm / 0.07inSuitable Material: For PLA, ABS, PETG, TPU, nylon, carbon fibre, wood. Adaptation: Compatible with most DIY 3D printers, such as for Creality CR10, for MK8 V6 CR10 Ender 3 series, for Wanhao D9, for Anet A8 E10, for Geeetech A10 high performance 3D printer upgrade parts. Package List1 x 3D Printer Extruder1 x Motor Bracket2 x Hex Wrench3 x Screw1 x PTFE Tube1 x Spring1 x Washer1 x Adjustment Screw3 x Accessory