【Material】The nozzle of the welding gun is made of copper, which has high strength and hardness, strong conductivity and durability. 【Package】You will receive 4 nozzles/cone caps MIG welding set, 10 welding nozzles, 2 fixed spring nozzle holders, 2 insulators and a tool, a total of 19 welding torch accessories. 【Easy to store】Our accessory sets are small and easy to store. Our contact tips are numerous and can be stored for a long time. 【Easy to assemble】Suitable for all MIG MAG devices equipped with AK15/MB-15 welding torches from other manufacturers. The wearing parts on the torch can be easily assembled without special tools. 【Note】 Since our measurement is manual, there may be an error of 1-2 mm. Please understand if there is a slight difference.