E-outstanding 2-Pack Motor Heatsink Racing Aluminum Alloy Electric Motor Heat Sink for 540 550 3650 Motor RC Car Part (Blue + Purple)

Material: aluminium alloy Inner diameter: 34.6mm/1.36 Height: 28mm/1.10 Thickness: 2mm/0.08 Package included: 1 x motor heat sink blue 1 x motor heat sink purple Feature: This heat sink fit for 540 550 and 3650 size motor, to protect your motor. very easy to use. Compatible with most traxxas, HSP, tamiya. and losi electric motors. Keep motors cool, Make your electric motor run more efficiently by keeping it cooler. Heat is the killer of electrical components especially motors-if you keep them cooler they will perform better and last longer.This heat sink will help do that.