Tape-On Window Visors feature a custom molded, completely integrated design which will give your vehicle a great OEM look, while working to reduce windshield fogging in humid weather and even improving your fuel economy! The visors are made from high quality, durable acrylic which will resist scratches and harmful UV rays. They guarantee to keep your vehicle's interior cool and dry when you leave your windows cracked, even in bad weather! The installation process is quick and simple, using 3M automotive grade double-sided tape. The visors are backed by a limited lifetime warranty.