Features:Assembled extruder hotend kit is compatible with Anycubic Mega Series 3D printer.0.4mm nozzle; 1.75 filament size; aluminum heating block; and heater wire 12V 40W.100K ohm thermistor with pin head, 0.5 meter PTFE tube for 1.75mm filament. Made of aluminum alloy, with excellent heat resistance and heat insulation, durable and smooth printing. Stainless steel throat tube achieves lower heat conduction and reduce the heat loss of the heating block. Specifications:Main Material: Aluminum + Stainless Steel + BrassFilament Diameter: 1.75mmNozzle Size: 0.4mm Heating Wire: 12V 40W/ 24V 40W(optional) PTFE Tube Length: 30cm Heater Block Size: 16 * 16 * 12mm/ 0.6 * 0.6 * 0.5in Package Size: 13 * 9 * 3cm/ 5.1 * 3.5 * 1.2in Package Weight: 90g/ 3.2oz Packing List:1 * Hotend Extruder Kit