Features:1. Good heat dissipation performance ensures safe and efficient work.2. With high quality materials and exquisite workmanship, it is durable for long term use.3. With fan to accelerate air motion, effectively prevent the motor from overheating.4. Easy and convenient to install and remove.5. Suitable for 4074/4274/1515 motor of RC model car.Specification:Condition: 100% Brand NewItem Type: RC Cooling FinMaterial: Metal + ABSCooling Fan: 5VApplicable Motor: 4074/4274/1515 Motor or 40/42mm Diameter MotorApplicable RC Car: for 1/10 Scale Electric RC CarColor: As Shown in The PicturesFan Size: 40 * 40 * 10mm/1.6 * 1.6 * 0.4inchTotal Size: Approx. 45 * 45 * 40mm/1.8 * 1.8 * 1.6inchWeight: Approx. 42.3gPackage List:1 * RC Cooling FinNote:Please allow slight deviation for the color and measurement. Thanks for your understanding.