This is the DuraTrax Kwik-Pit Super Start for the DuraTrax/SuperTigre G-27 CX Engine used in the DuraTrax Warhead EVO. FEATURES: 540 size motor Ball bearing drive train with steel gears Dust and impact resistant composite case Ninety day warranty INCLUDES: DuraTrax Kwik-Pit Super Start for the DuraTrax/SuperTigre G-27 Engine steel starter shaft, and instruction sheet REQUIRES: One 7.2V 6-cell stick battery pack, DTXC2030 Battery charger, DTXP4011 SPECS: Super Start Starter Shaft Length: 8.5" (216mm) Length: 7.2" (183mm) Width: 2" (51mm) Hex Size: .21" (5.3mm) Height: 3.5" (89mm)