If you have a pickup, don't waste your money on this. The problem is they are too short by several inches to go across the window. I installed in my F150. You never want to fully extend these across the window because they won't fold up automatically. To make matters worse, it is fully extended across my window and is 5 inches too short. I took it out of the window and now I have these stupid black clamps in my window. They are securely glued to the window. Why would they offer 25 inches tall but make them too short for the window.