MAXSA 37353 Park Right Tire Saver Ramps for Flat Spot Prevention and Vehicle Storage (Set of 4), Black Set of 4 tire savers each capable of supporting 5 tons Can be used for cars, trucks, SUVs, RVs, trailers, campers, and more Prevents flat tires and wheel damage resulting from long term storage Easy to use, simply position in front of tires and drive forward Heavy-Duty polypropylene plastic ensures these will last for years of use