UPF50+ and Maximum Heat Blocking: MERTTURM car window blinds for Summer 2022 are made of mirror-coated NANO-TI fabric and block most of the sunlight. The UV protection level is UPF50+ (maximum level). It effectively reduces the overall temperature of your vehicle's interior within 5-13 degrees. Thanks to this new material design, the time required to cool your vehicle via the air conditioner is reduced. Built-in magnets on both the horizontal and vertical sides: Thanks to its 12 strong magnets on the horizontal side and 4 magnets on the vertical side, MERTTURM car window blinds can be easily installed on steel window frames and prevent slipping off too easily like other similar products. Perfect for baby sleep, business work, privacy protection, break time, cooling the temperature, and car sun protection. Enjoy fresh air while protecting your privacy. Because this car curtain is magnetic, you don't need to remove the sun visor to roll the window up and down. The curtain stays in place when you want to feel the breeze. So you can open the window yourself. Easy to fit most windows and provide 99.7% shading. With a size of 80 cm x 50 cm, it can cover side windows of up to mid-size sedans, SUVs, MPVs, vans, station wagons, hatchbacks, etc. The car's sun visors will absorb most of the sunlight and make the car darker. It is very suitable for people who drive a lot or always park outdoors. Easy to carry. This car window sunshade can be easily opened and folded into a compact size. If you use the car blind in different vehicles, you can take it anywhere.