Protect Those Tires! Shield your spare tire from the harmful rays and the foul weather that is thrown your way. Made from strong black vinyl with corded edges and an elastic enclosure for a snug fit, this 13 inch spare tire cover is a great investment into the future of your tires. These Spare Tire covers are idea for keeping on your spare tire until you need it. Most will neglect their spare, and before its too later its been sitting in the sun for 4 years with no protection. Using a spare tire cover is a much safer way to ensure your Spare is in working condition when its needed. In addition, be mindful to air up your spare tire on a regular basis to make sure its at the proper psi when you need it most. This 13 inch Spare Tire cover is ideal for 175/80 13 Trailer tire Size.