Dual Drive Technology: It Feeds The Filament Smoothly And Uninterruptly, Without Fear Of Grinding Or Slipping Under The Most Demanding Conditions.Adjustable Tension Available: The Thumb Screw Tensioner Allows You To Fine Tune The Pressure Exerted By The Drive Gears On The Filament.Compact And Strong: It Uses An Internal Gear Ratio Of 3:1, With Precision Cnc Machined Hardened Steel Drive Gears To Give You Compact Power For All Your Applications. Better Experience On Flexible Filaments: It Feeds All Materials With High Reliability, From Pla/Abs/Petg To Tpu/Tpe/Nylon Filaments.Compared With Other Bowden Extruders, It Provides Better Experience On Filaments.Inding Flexible Or Slipping Under The Most Demanding Conditions.High Performance Upgrade Parts For Cr10, Ender 3 V2,Ender 3 Pro,Ender 3,Ender 5 Series,Mega S,Wanhao D9, Anet A8 ,E10, A10 Geeetech E T Other Diy 3D Printers.