Features Premium Materials: The 3D printer extruder hotend is made of aluminum, stainless steel and brass, which is highly sturdy, wear resistance. Excellent Components: This hotend is composed of 24V 40W heating pipe, heating aluminum block, 0.4mm nozzle, with heat sink and air pipe connector. Easy Connection: The connection type is external connection thread, which is easy to install, this extruder hotend is simple to operate. Wide Working Range: The working temperature range of this extruder hotend is ‑40℃ to +260℃, practical and functional. Applicable for: This extruder hotend is suitable for Anet ET4, for Anet ET4 Pro 3D printers, is an ideal replacement part. Specification: Item Type: 3D Printer Extruder Hotend  Material: Aluminum, stainless steel and brass Connection Type: External connection thread Applicable Models: For Anet ET4, for Anet ET4 PRO, etc. Heating Tube: 24V 40W Operating Temperature Range: -40℃ to +260℃ Heating Aluminum Block: Approx. 20x20x10mm/7.9x7.9x3.9in Nozzle: Approx. 0.4mm/0.2in Package List: 1 x 3D Printer Extruder Hotend Kit Package List 1 x 3D Printer Extruder Hotend Kit