Fit metal surface windows frame: Easy to finished in 5 seconds. Our car side window sunshades will be super firm because we place small magnets in each window sunshades, carbon fiber and aluminum materials surface are not fit for using Why people need car side window sunshades? Beause sun exposure, stealing of items, interior aging, baby rest is affected, no privacy etc Driving safely and comfortablely: Our car covers can be free stretching, we see the rear view mirror easily, which will not hinder the window lifting and lowering. You can buy two sets for covering all of windows. These curtains give you privacy so you can read and sleep or even nap without people staring at us, so it's excellent to use for camping and it works great Installs easily and fast: Just take them out of the package (which is reusable) and click them to your metal window frame.They are lightweight, but not see-through. When finished, just unclip them from you frame and fold them back into the package for later use Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin