 And the reason they do that, and they put those screws on there in that outer patch, because if Larson would have hit that batch of tires, tires would have gone flying everywhere. So all those stacks of tires are bolted together, and then, as Dave pointed out perfectly, that flat strip on the outside to act as if the wall, if you will. You hit that, it keeps all the tire barriers together without them flying and scattering all over the place.