Introduction: The stainless steel extruder unit features double gears made of stainless steel, which increases extrusion force and prevents slippage. It is suitable for commonly used 3D printing filaments such as PLA, PETG, TPU, and more. The extruder unit also includes a sensor that supports filament break detection, helping to prevent print failures and improving overall printing efficiency. Please keep all the screws from your old extruder unitfor replacement. Color:Black Material:Plastic+Metal Package Contents: 1 * 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.