Feature: 1. FINE WORKMANSHIP: 3D printer direct drive extruder has a all metal aluminum shell, anodized and sanded surface treatment, sturdy and not easy to wear, integrated structural design, simple wiring, and convenient disassembly and maintenance. 2. HEATING AND HEAT DISSIPATION: Equipped with heat dissipation block and heating block, the heating block is packaged with insulation silicone sleeve to ensure stable heating temperature, uniform and reliable printing, fan design, and more uniform heat dissipation 3. ALUMINUM BRASS MATERIAL: Flame retardant material, good insulation effect, while effectively maintaining cleanliness around the heating block and nozzle. 4. TIGHT FIT: Well crafted in standard size and premium materials, this direct drive extruder kit ensure a tight fit with your equipment and has a long service life. 5. APPLICABLE MODEL: 12V direct drive extruder kit is suitable for PYRAMID, for ENDER3 series, etc. Check the size for better use experience! Specification: Item Type: Direct Drive Extruder Kit Material: Aluminum, Brass Voltage: 12V Suitable for most 12V 3D printers on the market, such as for PYRAMID, for ENDER3 series, etc. . Package List: 1 x Extruder Kit1 x Manual 4 x Screw 4 x Accessory