This is the second set of the same tire covers that I have bought from ADCO. The first set was sold with my old RV so I needed a new set for the new RV. These covers are made from durable vinyl and fit most tire sizes. The light tan colour helps to dissipate the heat of the sun and keep your tires fresh and free of ozone and light damage. There easy to put on and will last many seasons. Over all I am very happy with these tire covers and would highly recommend them to anyone in the market for covers. They also look sharp on any RV.