SODIAL(R) 3PCS Nozzle 0.4mm for RepRap 3D Printer Hot End compatible with E3D Golden Replacement nozzle for 3d printer extruder use it with 1.75mm filament extruders Compatible with Makerbot MK8 nozzl These nozzles are compatible with E3D V5/V6 for 1.75mm filament.