Heat sink with 5V Cooling Fan for 1/10 RC Car 540 550 3650 Size Motor

this heatsink is suitable for 540/550/3650 size motor, with a 4.8-6V cooling fan to protect your motor.
The cooling fan can up from the receiver, very easy to use.
Dimensions of fan: Approx.1.18x1.18x0.39 inch/ 30x30x10mm
Dimensions of cooling fin: Approx. 1.18x1.57 inch/ 30 x 40mm
Total Height: 1.97 inch / 50mm

Color: Blue
Materials: metal
Weight: 75g

Package Contents: 3 X Aluminum Heat sink w/ 5V Cooling Fan