UV AND INSECT PROTECTION - 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 against harmful UV rays and sun glare, reduce heat and prevent your children from getting burned. Ensures annoying flies and insects stay 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. XL size (more suitable for rectangular windows). Window length ( max): 115cm,Window Height (max): 55cm.Please measure the size of your car's rear side window before purchasing. WINDOWS OPEN FREELY, AIR COOL BETWEEN - You can raise and lower the windows 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 view of the outdoors while keeping mosquitoes away. EASY TO INSTALL AND CARRY - The car window sunshade can be easily installed when the door is opened. No annoying suction cups or magnets are needed and it can be attached to a car window in seconds. When not in use, it can be stored in the provided storage bag.