Feature: 1. Base Value: Our hot end extruder print head has a power of 40W. Nozzle size is 0.4mm or 0.02in. Port is XH2.54, 2Pin. 2. Application Scenario: This hot end extruder print head is suitable for 1.75mm or 0.07in consumables. The heating block of this head is suitable for I3 Mega 3D Printer. 3. Leakage Prevention: The end of the throat on the print head is inclined at an angle of 45° for fluent feeding, slick orifice section, and seamless nozzle connection to prevent leakage. 4. Easy to Install: The thermistor and heating rod on the print head have the same leading length as the origin, making it easy to install and convenient to use. 5. Aluminum Alloy and Silicone Material: The overall extruder print head is made of aluminum alloy and silicone material with exquisite craftsmanship, which can achieve long term use. Specification: Item Type: Hot End Extruder Print Head Set Material: Aluminum alloy, silicone Power: 40W Application: Suitable for 1.75mm(0.07in) consumables Nozzle Size: Approx. 0.4mm / 0.02in Port: XH2.54, 2Pin. Package List: 1 x Extruder Print Head1 x Silicone Cover Note: Measurement may have error. Please make sure you don't mind before ordering.