Instructions for use: If you need to use the product to straighten the fins during the cleaning process, pay attention to adjusting the white movable buckle; The closer the movable buckle is, the tighter the brush and the stronger the force; Attention: Only suitable for fins with not severely damaged, please refer to the manual for details. Cleaning combination: air conditioner condenser and evaporator radiator clean tool is a practical tool for cleaning multiple types of appliances, this metal fin cleaning tool will work longer and be more dependable than a plastic fin comb, fin cleaning brush's bristles can be appiled to clean off years of caked on dirt and dust Multiple uses: fin cleaning brush and air conditioner fin cleaner is suitable for air conditioning units, refrigerators, fins, coils, evaporators, condensers, and more Easy to use: the coil cleaning brush is handy to use, flexible enough to not easy to break the fins of the coils, you can clean your appliances by yourself Size: the fin comb is 14.5 x 2.5 cm/ 5.7 x 0.99 inch, and the air conditioner condenser brush is 18 x 7.5 cm/ 7.09 x 2.95 inch. 2 air conditioning condenser fin cleaning brushes can be applied to clean different items in your home, which is sufficient to meet your cleaning needs.