Decription:2 in 1 out hotendHeating temperature up to 280 CelsiusMaterial: aluminum alloy + brassNozzle size: 0.4mmExtruder Dual Gear Kit Left/Right HandMaterial: aluminum alloyThe extruder is equipped with screwsDirection:right / left handSheet Metal With Brass Lead Screw NutMaterial:MetalSurface T..