A bar shaped steering wheel lock including two “L” shaped hooks obliquely attached on the lock body, an interior rod covered by trapezoidal thread for connecting the two hooks, a locking mechanism and an extendable sleeve. The trapezoidal thread allows the rod to be locked in position by the locking mechanism. The steering wheel lock is mounted firmly on a steering wheel by firstly inserting the two hooks into the holes on the wheel and secondly by stretching the two hooks until both the two hooks are secured on the arms within the rim of the steering wheel allowing the sleeve to be extended outward. The extended sleeve thus blocks the complete rotation of the steering wheel.