This is the Wltoys 144001 Upgrade Motor Heat Sink. Two colors you can choose. The motor heat sink can greatly reduce the temperature of the motor after the high-speed operation, and the heat dissipation speed is fast, which greatly improves the life of the motor.
These Parts are used for the Wltoys 144001 RC Car Buggy, Wltoys 1/14 High-Speed Racing Car
If you want to buy more parts for this RC car,
Please click the link below:
Wltoys 144001 Parts