UV AND INSECT PROTECTION - The car sun shades are made of high quality nylon fabric and are breathable and flexible. The rear window curtains can effectively protect your children and pets in the back of the car from harmful UV rays and sun glare,reduce heat and prevent your kids from getting burned.Keeps annoying flies and bugs out. UNIVERSAL SIZE - The baby car sunshade is compatible with most cars and uses a new generation of super elastic materials,Fits 99% of windows.Size L(Rather suitable for trapezoidal windows).Length window height (max): 120cm,Window height (max): 52cm. Please measure the size of your car's rear side window before purchasing. WINDOWS OPEN FREELY, FRESH AIR ENTERS - You can move the windows up and down while using the sun protection, to get fresh air while being protected from the sun. The windows can be lowered freely, without having to remove the breathable sun protection. So you can enjoy the fresh air and the view of the outside while keeping mosquitoes at bay. EASY TO INSTALL AND CARRY - The car window shade can be easily installed when the door is open. No annoying suction cups or magnets are required. needed and it can be attached to a car window in seconds. When not in use, it can be stored in the included storage bag.