[Warm Tip]: Regularly straightening and cleaning your air conditioner with a fin straightener tool can help improve the efficiency of your air conditioner. Fin cleaning kits are suitable for condensers, evaporators, and air conditioners. A combination of different sizes of air conditioner fin combs and fin cleaning brushes can help you address issues effectively and bring convenience to your daily maintenance. [Product Use]: Designed for straightening fins and coils, and for cleaning evaporators and condensers on air conditioners. Please note: these tools may not work on modern radiators that have numerous horizontal fins or complex radiator fin designs. [FCR6 Ring Fin Comb]: FCR6 Fin Comb Set for Air Conditioner, available in 12 different sizes to meet various needs. Features 6 different colors for easy identification and organization: Red: 18 and 20 fins per inch; Black: 16 and 17 fins per inch; Green: 12 and 14 fins per inch; Blue: 11 and 13 fins per inch; Yellow: 9 and 15 fins per inch; Orange: 8 and 10 fins per inch. [Fin Comb]: Stainless steel fin comb teeth are approximately 2-9/25 inches deep, durable and adjustable to prevent damage to coils. Includes a 6-in-1 plastic fin comb with teeth approximately 1/4 inch deep. [Broad Application]: These cleaning brushes are ideal for cleaning air conditioning units, coils, refrigerators, evaporators, fins, condensers, and other electrical appliances. Color: As shown Material: Plastic + Metal Package Contents: 5 x Coil brush Note: The package includes only the items listed above. Other products are not included. Note: Lighting effects and different display screens may cause slight variations in the color of the item as seen in photos compared to the actual product. Measurement may vary by +/- 1-3 cm.