Description: Material: The gear component is made from hardened steel and high strength copper material, ensuring durability and longevity.Advanced Features: With an HV value of 1000-1200 and an HRC value of 62-65, this gear component offers hardness and resistance to wear and tear.Nano Coating Surface Treatment: The nano coating surface treatment enhances the gear's resistance to wear, making it ideal for long term use in various environments.Compact Size and Lightweight: 2.7cmx3.45mm/1.06inchx0.14inch, this gear component is compact and lightweight, making it easy to handle and install. Fitment: Extruder gear is designed for Neptune 4, ensuring great compatibility and seamless operation. Specification: Packing size: 8cmx6cmx1cm/3.15inchx2.36inchx0.39inchMaterial: Hardened Steel and Copper Color: Black 2.7cmx3.45mm/1.06inchx0.14inch Package Includes: 1 Extruder Gear Note: Please allow slightly errors due to manual measurement and different monitors.