Features: Material: Crafted from quality material, our cooling fan for rc-car ensures longevity and reliability, providing a long-lasting cooling solution for your RC-motor EFFICIENT COOLING PERFORMANCE: Experience excellent heat dissipation and fast cooling speed with our heatsink cooling fans, keeping your motor at optimal-temperature levels for enhanced performance and durability Easy to Install: Easy to install, great for replace the old or broken part.Increase overall performance and durability of your RC-car ENHANCED MOTOR PERFORMANCE: Our cooling fans rc-car effectively dissipates heat, preventings motor overheating and enabling a longer and smoother running experience for your RC-car Wide Application: The RC-motor cooling fans specially designed for 540/550 brushed motor, 3650/3660 brushless motor Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Working voltage: DC4.8-8.4V Applicable to: 540/550 brushed motor, 3650/3660 brushless motor Package List: 1 Set Heat Sink