Feature: 1.Compatible Models: This dirext drive extruder is for Hi, Hi Combo 3d printers. 2.Direct Extrusion, Highly Capable: The metal gears extruder for Hi works well with PLA, PETG, and flexible TPU, unlocking your potential. 3.Adjustable tension: The tension allows you to fine-tune the pressure exerted by gears onto the filament according to your perferences which helps to print more exquisite models. 4.Light Weight: Compared with other direct extruders, this extruder is lighter and features less inertia and more precise positioning. 5.Metal Extruder Gears: Extruder gears are made of high-quality metal, which are more wear- and have a longer service life and have greater torque. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! all But Exquisite, With Strong Capability Compact and 6.25:1 reduction ratio Dual gears for smooth feeding Built-in filament break sensor Color: As Shown Material: Metal Package Contents: 1 x extruder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.