Description:Induction: This cooling fan features a temperature control switch, it will only work when the temperature exceeds 40℃.Wide compatibility: This motor heatsink is universal and is intended for Traxxas TRX4, is intended for Axial SCX10, and other kinds of RC car motor.Easy to install: The size range is adjustable from 34 to 38mm, this model vehicle motor cooling fan can be mounted easily.Application: This brushed motor cooling fan features high efficiency and can quickly cool the motor and prevent overheating.Long lifespan: Mainly made of metal, this RC car motor radiator is durable and can provide stable performance, and is not easy to break.Specification:Material: Metal.Color: Red, blue, black, gold.Size(LxWxH): Approx. 60x30x30mm/2.36x1.18x1.18 inch.Adjustable size range: 34-38mm.Compatibility: Replacement for Traxxas TRX4, replacement for Axial SCX10, replacement for Wltoys, replacement for Tamiya.Note:There might be a bit of color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.Package Includes:1 Piece Motor Cooling Fan.