The sun's rays can produce overheated steering wheels, seats, belt buckles, and car accessories. This can cause burns or intense pain if touched. The windshield sun shades have a reflective surface to bounce the light back, reducing the interior temperatureit bounces the light right back out, and keeps the interior cooler Material: The outer is reflective aluminum membrane . The inner layer is polyester fabric. Effectively insulate heat and reduce the UV radiation, precision fit, effectively cool . size:145 * 65cm(25.6in*57in) . NOTE:Please measure your windshield to confirm whether the size fits your vehicle before purchase In a few seconds,You can easy to install and use it, free disassembly, space saving, not easy to fall off, small size,easy to store Unlike cumbersome cardboard, spring-loaded or aluminium sunshades . This Shade opens and closes in one easy motion with nothing to wrestle with Car retractable windshield sun shade,It can be cut to fit the actual size of your car