Abstract: An apparatus for counteracting uncontrolled activations of air bags inflated by a pyrotechnical charge following a strong deceleration such as a crash. The apparatus has a pair of center plates having at least three arms displaced in relation to each other and having bent over hooks which engage the steering wheel ring of a vehicle and can be locked against the steering wheel. The center plate and the arms make it impossible to inflate the air bag which is mounted on the steering wheel of the vehicle.