This design covers the sidewall of the tire, protecting it from damaging UV rays. It is held in place with a strong elastic strip. The center is cut and hemmed to the hub diameter. Like all of our products, our tire shades are made right here in the USA. Our spring frame design (patent pending) makes storing your tire shades a piece of cake and takes up very little storage space! We use an exterior grade fabric with a high UV resistance in this application.