3D Printer Extruder Nozzle Print Head + Nozzle Throat + Heater Block KitFeature:Nozzle diameter: 0.4mmFeed inlet diameter : 1.75mmPackage included:1 x Heater block w/set screw1 x 304 SS threaded tube for 1.75mm Filament2 x M6 Jam nuts1 x 0.4mm Nozzle tip1 x 1.5mm Allen Wrench