Features: The extruder is made of quality aluminum alloy, which is durable and has a long service life. The overall size of the mainbody conforms to theCR radiators, with a small volume and does not occupy molding space. Imported transparent polytetrafluoroethylene pipes are used, andthe feed is visible. Highpower heating rod and 100K thermistor. The size of the heat sink has been increased to provide strong heat dissipation. Two in one aluminum block is detachable and easy to clean. Two types of filaments can be connected, switched between two inputs during printing, and extruded through the hot end. Specifications: Name: 2 in 1 out extrusion head Color: Black Voltage: 12V/24V 50W (optional) Heat shrink material: aluminum alloy Heater material: aluminum alloy Nozzle material: Bronze Pneumatic joint material: stainless steel Nozzle aperture: 0.4mm Port: XH2.54 2Pin Wire length:approx 100cm/39.37in Package Includes: 1PC x 2m Tube 1PC x Thermistor 1PC x Heating Rod 2PCS x PC4-M6 note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different display resolution.