FRONT LOWER ARMS REVO BLUE Optional Golden Horizons Blue Aluminum Front Lower Arms for the Traxxas Revo. FEATURES: Aluminum Construction, Blue in Color. Very Durable INCLUDES: (2) Front Lower Arms REQUIRES: Installation onto the Revo SPECS: Length: 5-3/4 (146mm), Width: 2-7/8" (73mm), Thickness: .316" (8mm) "