This! I bought an extra one for my fj and cut it to fit the side windows. It's just friction that holds them in place. I even use them while I'm in at work. The Tucson sun gets HOT in the summer!some folks use the folding things made for keeping the sun out of the windshield (awkwardly worded!). like these ones: https://www.google.com/search?q=win...QSDyYCQDA&sqi=2&ved=0CD0QsAQ&biw=1339&bih=793