Item Type: 3D Printer Extruder Kit Gear Ratio: 3:1 Consumable Diameter: 1.75mm Suitable Material: PLA, ABS, PETG, TPU, nylon, carbon fiber, wood Adaptation: Compatible with most DIY 3D printers, such as for CR10, for MK8 V6, for CR10 Ender 3 series, for Wanhao D9, for Anet A8 E10, for Geeetech A10 high performance 3D printer1GOOD STABILITY: High accuracy CNC hardened steel internal parts ensure smooth feeding when printing, can achieve the best performance of your 3D printer. 2FOR 1. 75MM CONSUMABLE: Compatible with all open source 3D printers with 1. 75mm diameter consumables on the market, supporting remote and short range feeding. 3DUAL GEAR DRIVE: Adopt double gear drive speed reduction mechanism, with 3:1 transmission ratio, has large torsion, stable feeding without slipping. 4WITH SPRING: Fastening spring mechanism allows the user to fine tune the pressure the gear applies to the filament for easy filament replacement. 5APPLICABLE MODEL: Compatible with most DIY 3D printers, such as for CR10, for MK8 V6 CR10 Ender 3 series, for Wanhao D9, for Anet A8 E10, for Geeetech A10 high performance 3D printer. 1 x Extruder 1 x Motor Bracket 2 x Hex Wrench 3 x Screws 1 x PTFE Tube 1 x Spring 1 x Gasket 1 x Adjusting Screw 3 x Accessories