Car sun shade is designed to block out harmful UV rays and prevent heat from entering into your car. These car sun shades can protect your passengers from skin irritation and bright sunlight. The car shades can prevent direct sun exposure. car from overheating during the summer and keeps the interior cool, providing clear visibility for drivers and passengers. (Note: After installing the sunshades on your side door windows, close the glass completely). Universal Roller Car Sunshade Window Sun Shade Screen Cover Blind Protector Foldable Home Glass Curtain Sun Visor Film Sheet. No Shrinking: The built-in high-precision parts ensure smooth rotation without abnormal jamming. It can adapt to frequent stretching and shrinking for a long time. Suction Cup Design: The suction cups feature strong suction force to allow this sunshade firmly attach to the glass, and the suction cups will not fall when you drive on the uneven roads. UV Block Sun Visor: You can attach this sunshade to the edge of the glass, it will not block your view. The sunshade is compact after being rolled up. 112233