Creality Special Harden Steel Nozzle Kit Set, compatible with 3d printers like Ender-3 / Ender 3 Pro / Ender-5/ CR-6 SE / CR-6 Max 3d printer, etc. copper plate: 1 pcs 0.25mm + 2 pcs 0.4mm+1 pcs 0.6mm harden steel: 1 pcs 0.25mm + 2 pcs 0.4mm+1 pcs 0.6m