Features: High-strength materials: Selected from aluminum, with good thermal conductivity and durability, able to withstands high Temperatures and frequent use. Compatibility: Speciall for MK8 extruder, suitable for various 3D printers (such as 3D Printer), and suitable for various printing requirements. High-quality heat conduction: The superior heat conduction property of aluminum ensures that heat is transferred to the nozzle quickly and evenly, improving printing efficiency and quality. Easy installation:Simple, and users can easily install and replace it without complicated tools and professional knowledge. Optimized thermal resistance design: Reduce heat loss through reasonable design and improve the working efficiency of the whole hot end. Specifications: Component:Aluminium Color:Silver/Silver New/Yellow Size:Approx.20x20x10mm/0.78x0.78x0.39inch Package Includes: 1Pc Heater Block note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.