Why your RV vehicle wheels need coversIt protects your tires and wheels from sun damage, dirt, rust, corrosion and all types of weather when your vehicle is parked.Keep your tires free of scratches, in order to extend its service life. Because tires left exposed to the sun and other environmental hazards will use much faster than you might think and could potentially lead to on-road blowouts as well as costly replacement.More serious may have security risks.Choose Aootf RV Tire Cover 4 Pack-Is the right choice for tire protectors!Fit wheels for RV, Travel Trailer, Motorhome, Class A, Class C, 5th wheel, Jeep, SUV, car, truck, camper. - Aluminum Film Material:The tire covers are made of waterproof aluminum material, thick cotton wool lining, durable. - Fits up to 31" tire diameters - Fast and easy slip-on fit - 4 Tires packed and 12 set HIGH VALUE PRACTICAL TIRE TOOL - Made of heavy-duty, aluminum-lined vinyl with a dense fleece lining to protect the tire from frost or various bad weather conditions for years of reuse and the perfect combination of durability and frost resistance with anti-UV coating - Elasticized back hem and hook designNote: Please allow 1-3 CM differs due to manual measurement.How to measure your tires:- Measure the distance across the center of front of the tire from edge to edge. And then measure the depth of the tire itselfNote: Use diameter measurement, not tire size to determine cover size- Do not need to choose the bigger for an easier fit, the elasticised back and hook design would provide you a custom fit and easy installationGreat After-sale Service- 100% money back replacement guaranty, 3 years warranty