SkyRC GC301 Automatic Stability Control Gyro For RC Car, Drift Assist Gyroscopically controlled stability control for your RC car. It senses drift and helps maintain car on course. Completely automatically steers your car for you but does not hamper your normal steering inputs Gain (strength) is adjustable and there is a port for remotely adjusting gain while driving Precisely maintains vehicle direction regardless of track conditions or outside forces Adds incredible stability which makes your car easier to drive faster