A steering wheel lock is a metal bar that is connected to the steering wheel to prevent it from turning. This prevents a would-be thief from driving it very far. The lock can only be disengaged with the right key, so anyone without it won’t be able to drive the vehicle.
However, it’s smart to look into other anti-theft measures, like an aftermarket alarm system to further protect your car.
You’ll also want to consider comprehensive car insurance, which covers your car in the event of a theft.