40PCS: 10 pcs standard cutting nozzle, 10 pcs plasma electrode, 10 pcs nozzle cap/ceramic nozzles, 10 pcs ceramic rings high quality copper. The nozzle electrode kit is used. for PT31 LG-40 plasma cutting gun. Many nozzles and electrodes are in reserve, convenient to replace the broken one during the cutting process, finish the smooth cutting draft Durable and long service life of the nozzles, which have fast cutting speed and good quality. Nozzles are considered plasma cutter consumables, they are essential to the plasma cutting project.