This is the optional Golden Horizons Aluminum Motor Mount for use on the Traxxas E-Revo Vehicles. FEATURES: Aluminum construction with cooling fins Anodized blue in color INCLUDES: One Aluminum Motor Mount REQUIRES: Installation on the vehicle SPECS: Length: 58mm (2.2") Width: 44mm (1.7") Height: 23mm (0.91") COMMENTS: Also available in Silver (GHHC2557) cnh 5/27/09 ir/jxs