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、It has perfect heat dissipation effect which can effectively prevent the motor from overheating. 4、Easy and convenient to install and remove. 5、Suitable for 550 / 540 motor of RC model car. Specification 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. It has perfect heat dissipation effect which can effectively prevent the motor from overheating. 4. Easy and convenient to install and remove. 5. Suitable for 550 / 540 motor of RC model car. Specification: Condition: 100% Brand New Item Type: RC Motor Radiator Material: Aluminum Alloy + Plastic DC Voltage: 5V - 6V Operating Voltage: 5.0V 7000 Rotation Applicable Motor: 550 / 540 Motor Applicable RC Car: for 1/10 Scale Electric RC Car Optional Color: Purple, Blue, Silver, Gold Total Size: Approx. 45 * 40 * 60mm / 1.8 * 1.6 * 2.4inch (Width/Height/Length) Fan Size: Approx. 30 * 30 * 10mm / 1.2 * 1.2 * 0.4inch Weight: Approx. 51g Package List: 1 * RC Motor Radiator (Twin Fans) Note: Please allow slight deviation for the color and measurement. Thanks for your understanding. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List