Abstract: An elongated device which may be strapped centrally of the rear seat of an automobile against relative movement by means of the usual seat belts that are attached to the rear seat, and to the central area of which device two small children may be strapped by means of a pair of seat belts attached to the device.

Abstract: A device having a pair of right-angle members slidable relative to each other to bring the jaws mounted to the foot of a leg of one of the members and the jaws of an opposed clamp mounted to the foot of a parallel leg of the other member into clamped engagement with diametrically opposed brake cooling slots and the adjacent surface of a wheel of a parked motor vehicle, and including a key operable lock mounted in part to each of the right-angle members which serves to secure the members in the clamped condition. In its diametrically applied condition to the wheel, the device obstructs application of a boot over the lug nuts of the wheel, and an elongated arm of one of the member extends beyond the periphery of the wheel so as to immobolize the wheel against rotation relative to the roadway.