The Car Sun Shade for Side and Rear Window by Veneev blocks out up to 98% of harmful UV rays. The shades come in a pack of four and are designed to cling to the windows using static. This makes them easy to install and means no risk of mess or damage on your car windows. The shades are collapsible as well, making them easy to store and transport when not in use. Made from 80 GSM quality mesh, the sun shades keep your car cool and comfortable even on the hottest days. The pack includes two shade sizes so that you can arrange them however best fits your needs and your vehicle.