Features: High performances double cooling systems with 2000RPM alloy fans efficiently reduces temperatures of 540 brushed and 3660 brushless motors, ensuring optimal power output for remote cars while featuring IP44 waterproof protections. Crafted from light weight aluminum alloy and plastic, this motor heatsink and cooling fan combo delivers rapid heat dissipation, JST connector compatibility, and universally 3.5-3.7cm motor fitment for 1/10 scale vehicle. Ideal for remote enthusiasts upgrading, and off road bashers requiring thermal management during intense racing or crawling. Maintains stable 4.8-6V operations when connection to receiver power, perfect for cooling motors during prolonged track runs, shallow water adventures, or high temperature desert driving scenarios. Engineered with rigorous quality testing, this plug and play cooling solution combines easy installation with extended component lifespans, making it essential gear for competitive remote car competitions and hobbyist maintenance. Specifications: Component: Alloy Color:Red,1,Black,Blue,Silver,Gold Package Includes: 1Set Cooling Fan note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.