Powerhobby 1/8 Aluminum HeatSink (Motor Mount) w/Twin Turbo High-Speed 30mm Cooling Fans For 40-42mm Diamtere Motors Features: Twin motor cooling fans with motor mount fits 1/8 scale motor with a diameter of 40-42mm and power connector can plug directly into any open channel of the receiver or BEC, it can reduce the temperature of the motor quickly and get the motor as cool as possible Pushing your 1/8 scale car to the limit! Includes JST-Y Splitter with servo connecter The total wire length is 15 inches Specifications: Input Voltage: 6-84V Two 30x30x10mm Fans (28000 rpm @84v) Aluminum Motor Mount Aluminum Fan Covers