Set of 4 Tire Covers,Waterproof Aluminum Film Tire Sun Protectors,Fits 27" to 29" Tire Diameters,Weatherproof Tire Protectors Convenient: Easy to install, remove and clean;no tools required. Durable: Thick aluminum waterproof material, thick cotton wool lining, durable. Design: Hook design is not easy to be blown away by the wind ensures more secure fit. Application: Ideal for use on RV, trailers, campers, cars and trucks; fits 27" to 29" tire diameters. Function: Protect the tires and wheels from sun damage, dirt,rust, corrosion and all types of weather when your vehicle is parked.