This is an optional Traxxas Low CG Chassis Conversion Kit, and is intended for use with the Traxxas 4X4 1/10 scale short course truck. Lower CG, Higher Corner Speed, Lower Lap Times! Performance-proven with the Slash 4X4 Ultimate and 1/10 Rally models, Traxxas’ Low Center-of-Gravity chassis is now available as a complete conversion kit for the Slash 4X4. The Low-CG Conversion Kit lowers the chassis, battery*, and electronic components* to bring all the advantages of a low center of gravity to the award-winning 4WD short-course truck. No matter where you want to race, on the track or off, you will experience superior handling and better corner speed. The conversion kit includes all the parts and hardware required to convert one Slash 4X4 to the Low-CG configuration. (*not included in kit)