ITEM NAME:Upgraded BMG Extruder Dual Drive for 1.75 Filament Creality CR10 Ender 3 Description: Better quality components: We take pride in our high quality upgraded components, better gear machining, and premium packaging compared to the cheaper clones. Cloned BMG utilizes an internal gearing ratio of 3:1 together with precision cnc-machined hardened steel drive gears to give you a compact powerhouse for all your applications. High performance dual drive: unique Dual-Drive technology delivers uninterrupted material flow without fear of grinding or slipping in even the most demanding.Quick release: Quick and easy release lever to be able to do material changes in a snap. 1x BMG Extruder Dual Drive. Cloned BMG utilizes an internal gearing ratio of 3:1 together with precision cnc-machined hardened steel drive gears to give you a compact powerhouse for all your applications.