[Replace]: The nozzle and are consumables. When you feel your airbrush work in bad condition, change the broken nozzles and for old airbrush to make your airbrush into condition again. 0.2 Spray + 0.2 Nozzle + 0.2 Nozzle + 0.5 Spray + 0.5 Nozzle + 0.5 Nozzle + 0.3 Spray + 0.3 Nozzle + 0.3 Nozzle + Wrench.