Molded composite servo saver set - extra stiff. Consists of 4 springs to make the servo saver strong enough to prevent extreme steering deflection from impacts, while at the same time being flexible enough to prevent servo damage in hard crashes. Features interchangeable bushings to fit most popular servos. Fits T3'11, T3'12, T4, X1, X10, XII, X12, XB2 and XT2 cars.