I've got the Ultraguard and angle iron mounting bracket. Installed by my dealer it's welded on.
It's for peace of mind protection but it's not a guarantee
Helps to not tailgate, look way far ahead, don't break the speed limit. That way you might avoid debris to start.
The max speed limit, from the owners manual, on most towed vehicles is 65 mph.
Was on a 5,000 mile trip this summer, no debris hits