Having trouble reaching the top of your truck, RV, or roof of your car? Get a step up. This innovative tire service step fits over any diameter tire that's up to 13in. wide/deep, raising you up high enough to make washing, waxing, or attaching and loading roof-mounted cargo racks a snap. The dependable step adjusts to four positions and features a strong no-slip surface. Rubber bumpers protect your tire from damage. When you are done, the truck service step folds flat for easy storage. The Heavy Duty Steel Frame design has a max weight capacity of 300-Lbs.