these things are strong, they attach at the top bar area nxt to the visor, and then on the upper most bolt on the side. very secure.

based on where they are, not sure i could hit my head if im wearing my seat belt (i tried leaning forward, and the only way my head touches it is if my seat belt if off, and i have to leave the seat grab the wheel and pull where my chin is past the steering wheel...),
its really out of the way, you have to set in the rig to get the full impression, casue in the pic they appear much closer than they really are. but here are a few pics.

