3 steel wire brushes, brass-coated, for removing combustion residues   on ducts for the injector housing. 

2 silicone nylon brushes for cleaning injector seats in the cylinder head   Give the injector seat a smooth surface 

1 extension with quick release chuck for brushes 

6 injector shaft sealing plugs for sealing the combustion chamber during cleaning

1 mounting/disassembly rod for insertion/removal of the sealing plugs.

1 steel wire brush for cleaning nozzle holes in the cylinder head.