First of all please note that the product did not come with instructions so I messed up trying to install it on my car. I was pleased with this item the first two times I used it, but failed on the third use. The strap on one side that is supposed to secure the shield has come loose completely. I did this by trying to close it in the door to keep it in place. Then, on the fourth use, the strap that was supposed to go around the mirror broke off at one end. I would not recommend this item if you don't have a sewing machine to fix the webbing. I would return the product but 2 days after the window the 2nd strap broke.