1、Main Function: The RC motor cooling fan has a perfect heat dissipation effect, which can effectively prevent the motor from overheating. 2、Material: Using high quality materials, the motor cooling fan has high reliability and long service life. 3、Easy to Install and Disassemble: Complete accessories make it easy to install and disassemble, and can directly replace the old or damaged motor cooling fan. 4、Portable: Small in size and light in weight, the cooling fan set is easy to carry, very convenient to use. 5、Applicable Motors: With fine workmanship and excellent performance, the set is suitable for 4068 4268 4274 4275 and other motors with a diameter of 42mm / 1.7in. Item Type: RC Motor Cooling Fan Set Material: Plastic + Aluminum Alloy Cooling Fan Size: Approx. 40x40x10mm / 1.6x1.6x0.4in Product Weight: Approx. 50g / 1.8oz Fan Applicable Voltage: DC 5V Applicable Motor: Suitable for 4068 4268 4274 4275 and other motors with a diameter of 42mm / 1.7in 1 x Cooling Fan Clip 1 x Set of Cooling Fan Set 5 x Screw 4 x Install Aluminum Pillar