at least make sure all the screws are good and tight, i was going down a county road, and had a grain truck coming towards me, the wind he threw back took my sun visor up over the cab, lucky it didn't hurt the truck or visor, i look real good to find i had a couple of screws that had worked a little loose and the wind was more than enough to blew the visor off- lesson learned i now check the visor and srews every once and a while