This is the Arrma ARAC7009 Motor Heatsink 4x4 BLX 3S, AR310883

This aluminum motor heatsink keeps your motor running cool when the action heats up.

Features
Precisely manufactured for an excellent fit – Black anodized finish with etched ARRMA logo for cool looks – Constructed from high-quality light-weight aluminum – Multi-fin design increases surface area for efficient heat transfer – Flat area allows the mounting of aftermarket fans for additional cooling - Specifically designed for the ARRMA 4X4

Includes
1 x Motor Heatsink