This is the Team Integy Motor Heatsink with Twin Cooling Fans for use on the Traxxas 1/10 Slash 4x4 #6808. FEATURES: This green aluminum motor heatsink has twin built-in fans INCLUDES: Motor heatsink assembly with two attached fans and BEC connector BEC pigtail SPECS: Length: 2.4" (61mm) Width: 1.57" (40mm) Height: 1.65" (42mm) jxs 10/05/12 ir/jxs