Features: Made of metal, high quality and durable, this extruder feeder drive is compatible with nearly all models of 3D printers. Our kits include all the necessary screws & parts needed to directly replace your old weak plastic extruder. The metal extruder has stronger pressure to push filament into the printer nozzle so that to improve the printer's performance. Our extruder kits have an adjustable bolt so that you can adjust the pressure of the extruder gear as needed. Easy to use and install, has a long service life. Widely used in most 1.75mm filament. Specifications: Material: Aluminum Color: Red/Champagne Gold(optional) Type: Left Hand/Right Hand(optional) Package Size: 12.0 * 7.9 * 1.5cm / 4.7 * 3.1 * 0.6in Package Weight: 58g / 2.0oz Package List: 1 * Extruder Block Kit