MK8 Extruder Hotend Upgrade Kit for Ender3 Direct Drive All Metal Short Range Extrusion 1.75mm Filament Print Head For Ender-3/CR10S/PRO Anet A8 Extruder Kit Specification 24V Suitable For:Ender-3/3S/V2/PRONozzle size:0.4mmVoltage:24VPackage Includes:Fixed backplaneX1PCSExtruder kitX1PCSV-..