ULTRA THICK DURABLE - Made of 4 layers of high quality material - PEVA aluminum foil, spun cotton, composite cotton, soft non-woven lining. Ultra thick and strong to keep the windshield clean and clear. ALL WEATHER PROTECTION - Blocks nearly 99% of UV rays, helps lower the temperature in SUMMER. Prevents frost/snow/ice buildup on the windshield in winter and saves your time spent scraping ice or snow in the morning. Block the dust in SPRING and stay away from dead leaves in FALL. (DO NOT USE WHEN IT IS RAINING HEAVY) EASY TO INSTALL AND REMOVE - No tools required! Secured with side flaps design, prevent falling off. (SILVER SIDE UP! ) VERSATILITY - Not only provides all-weather protection for your car, but also suitable for outdoor use, such as a camping mat, picnic mat, beach mat, carpet tables, etc.