Description: -3d printer 2 in 1 out double color extruder single head 12v/24v 0.4mm 1.75mm with fan. -the throat have tube inside , which can potect the fliament overflow. -2 in 1 out design makes your printer more colorful and more interesting. -nozzle?m5 screw threaded , 0.4mm, for 1.75mm fliament.?nozzle temperature:180?-260?? -rated voltage?12v -feeder?long distance feeder.?bowden? -heater wire?12v,40w,length 1 meter -cooling fan: 30x30x10mm Package Includes: 1 Set 3D Printer Accessory Kit