Description:- Quality metal material.- Fine workmanship, with dual high speed fan, efficient heat dissipation.- Suitable for 4985 and 1717 motor.- Easy installation, durable to use.- Suitable for ARRMA 1/5 BRUSHLESS 4WD SPEED MONSTER TRUCKSize Chart:Size: 80x40mmPackage Includes:1 Piece Motor Heat SinkNote:Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement.