This Injector Seat and Manhole Cleaning Set can effectively clean the injector shaft, cylinder head and injector holes in the injector seat Package include 2 silicone nylon brushes for cleaning the injector seat in the cylinder head, giving the injector seat a smooth surface and 1 extension with quick release chuck for brushes Package Includes: 2x silicone nylon brushes; 3 steel wire brushes; 6x injector shaft sealing plugs; 1x plug assembly/disassembly rod; 1x steel wire brushes; 1x extension with quick release chuck for brushes 6 injector shaft sealing plugs to seal the combustion chamber during the cleaning process, prevents the escape of combustion gases caused by poorly seated injectors. Suitable for a variety of vehicles, Completely sorted in plastic case, easy to carry.