Condenser brush set: the package includes 2 pieces of air conditioner condenser fin cleaning brushes, 1 piece of condenser fin straightener cleaner and 1 piece of stainless steel air refrigerator fin cleaner , use them together to make cleaning more efficient Coil brush: suitable for in-line condensers; When applied, pull the holder inward and insert the curved head of the brush inward to clean dust or straighten the deformed condenser Plastic whisk brush: the plastic whisk brush plastic is stiff and smooth enough to remove dirt and leave condenser fins or coils clean without damaging the coils Condenser Fin Straightener Comb: The fin straightener tool has 6 side heads for 8, 9, 10, 12, 14 and 15 fins per inch applications, for cleaning and straightening a variety of domestic and auto finned applications such as condensers, evaporators, etc. Improve efficiency: regular use of the heat sink cleaning brush to clean equipment can improve air conditioning efficiency, efficiency is